diff --git a/.gitignore b/.gitignore
index 29f2040..7fdb73b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 application/modules/voiceserver/static/img/ts3/server/
-nbproject/
\ No newline at end of file
+nbproject/
+application/modules/voiceserver/cache/
\ No newline at end of file
diff --git a/application/modules/voiceserver/boxes/views/voiceserver.php b/application/modules/voiceserver/boxes/views/voiceserver.php
index 354c4b0..cbcff40 100755
--- a/application/modules/voiceserver/boxes/views/voiceserver.php
+++ b/application/modules/voiceserver/boxes/views/voiceserver.php
@@ -1,35 +1,37 @@
 <?php $voiceServer = $this->get('voiceServer'); ?>
 
 <?php function getVoiceserverBoxView($items) { ?>
-    <?php $last_channel = end((array_keys($items))); ?>
-    <?php foreach ($items as $key => $item): ?>
-        <li <?php if($last_channel == $key): ?>class="last"<?php endif; ?> >
-            <a href="<?=$item['link'] ?>" title="<?=$item['topic'] ?>" >
-                <?=$item['icon'] . $item['name'] ?>
-                <?php if (isset($item['flags'])): ?>
-                    <div class="voiceSrvFlags"><?=$item['flags'] ?></div>
+    <?php if(is_array($items) && count($items) > 0): ?>
+        <?php $last_channel = array_keys($items)[count($items)-1]; ?>
+        <?php foreach ($items as $key => $item): ?>
+            <li <?php if($last_channel == $key): ?>class="last"<?php endif; ?> >
+                <a href="<?=$item['link'] ?>" title="<?=$item['topic'] ?>" >
+                    <?=$item['icon'] . $item['name'] ?>
+                    <?php if (isset($item['flags'])): ?>
+                        <div class="voiceSrvFlags"><?=$item['flags'] ?></div>
+                    <?php endif; ?>
+                </a>
+                <?php if (isset($item['users'])): ?>
+                    <ul>
+                        <?php $last_user = array_keys($item['users'])[count($item['users'])-1]; ?>
+                        <?php foreach ($item['users'] as $u_key => $user): ?>
+                            <li <?php if (!isset($item['children']) && $last_user == $u_key): ?>class="last"<?php endif; ?> >
+                                <?=$user['icon'] . $user['name'] ?>
+                                <?php if (isset($user['flags'])): ?>
+                                    <div class="voiceSrvFlags"><?=$user['flags'] ?></div>
+                                <?php endif; ?>
+                            </li>
+                        <?php endforeach; ?>
+                    </ul>
+                <?php endif; ?>                
+                <?php if (isset($item['children'])): ?>
+                    <ul>
+                        <?php getVoiceserverBoxView($item['children']); ?>  
+                    </ul>
                 <?php endif; ?>
-            </a>
-            <?php if (isset($item['users'])): ?>
-                <ul>
-                    <?php $last_user = end((array_keys($item['users']))); ?>
-                    <?php foreach ($item['users'] as $u_key => $user): ?>
-                        <li <?php if (!isset($item['children']) && $last_user == $u_key): ?>class="last"<?php endif; ?> >
-                            <?=$user['icon'] . $user['name'] ?>
-                            <?php if (isset($user['flags'])): ?>
-                                <div class="voiceSrvFlags"><?=$user['flags'] ?></div>
-                            <?php endif; ?>
-                        </li>
-                    <?php endforeach; ?>
-                </ul>
-            <?php endif; ?>                
-            <?php if (isset($item['children'])): ?>
-                <ul>
-                    <?php getVoiceserverBoxView($item['children']); ?>  
-                </ul>
-            <?php endif; ?>
-        </li>
-    <?php endforeach; ?>
+            </li>
+        <?php endforeach; ?>
+    <?php endif; ?>
 <?php }; ?>
 
 <?php
@@ -87,7 +89,7 @@
             refreshVoice();
             function refreshVoice() {
                 $('#voiceserver').load('<?=$this->getUrl(['module' => 'voiceserver', 'controller' => 'ajax','action' => 'refreshVoice']); ?>');
-            };
+            }
         }, <?=$voiceServer['Refresh']*1000 ?> );
     });
 </script>
diff --git a/application/modules/voiceserver/classes/cache.class.php b/application/modules/voiceserver/classes/cache.class.php
new file mode 100644
index 0000000..c083643
--- /dev/null
+++ b/application/modules/voiceserver/classes/cache.class.php
@@ -0,0 +1,324 @@
+<?php
+
+/**
+ * Simple Cache class
+ * API Documentation: https://github.com/cosenary/Simple-PHP-Cache
+ * 
+ * @author Christian Metz
+ * @since 22.12.2011
+ * @copyright Christian Metz - MetzWeb Networks
+ * @version 1.6
+ * @license BSD http://www.opensource.org/licenses/bsd-license.php
+ */
+
+class Cache {
+
+  /**
+   * The path to the cache file folder
+   *
+   * @var string
+   */
+  private $_cachepath = 'cache/';
+
+  /**
+   * The name of the default cache file
+   *
+   * @var string
+   */
+  private $_cachename = 'default';
+
+  /**
+   * The cache file extension
+   *
+   * @var string
+   */
+  private $_extension = '.cache';
+
+  /**
+   * Default constructor
+   *
+   * @param string|array [optional] $config
+   * @return void
+   */
+  public function __construct($config = null) {
+    if (true === isset($config)) {
+      if (is_string($config)) {
+        $this->setCache($config);
+      } else if (is_array($config)) {
+        $this->setCache($config['name']);
+        $this->setCachePath($config['path']);
+        $this->setExtension($config['extension']);
+      }
+    }
+  }
+
+    /**
+     * Check whether data accociated with a key
+     *
+     * @param string $key
+     * @return boolean
+     * @throws Exception
+     */
+  public function isCached($key) {
+    if (false != $this->_loadCache()) {
+      $cachedData = $this->_loadCache();
+      return isset($cachedData[$key]['data']);
+    }
+  }
+
+    /**
+     * Store data in the cache
+     *
+     * @param string $key
+     * @param mixed $data
+     * @param integer [optional] $expiration
+     * @return object
+     * @throws Exception
+     */
+  public function store($key, $data, $expiration = 0) {
+    $storeData = array(
+      'time'   => time(),
+      'expire' => $expiration,
+      'data'   => serialize($data)
+    );
+    $dataArray = $this->_loadCache();
+    if (true === is_array($dataArray)) {
+      $dataArray[$key] = $storeData;
+    } else {
+      $dataArray = array($key => $storeData);
+    }
+    $cacheData = json_encode($dataArray);
+    file_put_contents($this->getCacheDir(), $cacheData);
+    return $this;
+  }
+
+    /**
+     * Retrieve cached data by its key
+     *
+     * @param string $key
+     * @param boolean [optional] $timestamp
+     * @return string
+     * @throws Exception
+     */
+  public function retrieve($key, $timestamp = false) {
+    $cachedData = $this->_loadCache();
+    (false === $timestamp) ? $type = 'data' : $type = 'time';
+    if (!isset($cachedData[$key][$type])) return null; 
+    return unserialize($cachedData[$key][$type]);
+  }
+
+    /**
+     * Retrieve all cached data
+     *
+     * @param boolean [optional] $meta
+     * @return array
+     * @throws Exception
+     */
+  public function retrieveAll($meta = false) {
+    if ($meta === false) {
+      $results = array();
+      $cachedData = $this->_loadCache();
+      if ($cachedData) {
+        foreach ($cachedData as $k => $v) {
+          $results[$k] = unserialize($v['data']);
+        }
+      }
+      return $results;
+    } else {
+      return $this->_loadCache();
+    }
+  }
+
+    /**
+     * Erase cached entry by its key
+     *
+     * @param string $key
+     * @return object
+     * @throws Exception
+     */
+  public function erase($key) {
+    $cacheData = $this->_loadCache();
+    if (true === is_array($cacheData)) {
+      if (true === isset($cacheData[$key])) {
+        unset($cacheData[$key]);
+        $cacheData = json_encode($cacheData);
+        file_put_contents($this->getCacheDir(), $cacheData);
+      } else {
+        throw new Exception("Error: erase() - Key '{$key}' not found.");
+      }
+    }
+    return $this;
+  }
+
+    /**
+     * Erase all expired entries
+     *
+     * @return integer
+     * @throws Exception
+     */
+  public function eraseExpired() {
+    $cacheData = $this->_loadCache();
+    if (true === is_array($cacheData)) {
+      $counter = 0;
+      foreach ($cacheData as $key => $entry) {
+        if (true === $this->_checkExpired($entry['time'], $entry['expire'])) {
+          unset($cacheData[$key]);
+          $counter++;
+        }
+      }
+      if ($counter > 0) {
+        $cacheData = json_encode($cacheData);
+        file_put_contents($this->getCacheDir(), $cacheData);
+      }
+      return $counter;
+    }
+  }
+
+    /**
+     * Erase all cached entries
+     *
+     * @return object
+     * @throws Exception
+     */
+  public function eraseAll() {
+    $cacheDir = $this->getCacheDir();
+    if (true === file_exists($cacheDir)) {
+      $cacheFile = fopen($cacheDir, 'w');
+      fclose($cacheFile);
+    }
+    return $this;
+  }
+
+    /**
+     * Load appointed cache
+     *
+     * @return mixed
+     * @throws Exception
+     */
+  private function _loadCache() {
+    if (true === file_exists($this->getCacheDir())) {
+      $file = file_get_contents($this->getCacheDir());
+      return json_decode($file, true);
+    } else {
+      return false;
+    }
+  }
+
+    /**
+     * Get the cache directory path
+     *
+     * @return string
+     * @throws Exception
+     */
+  public function getCacheDir() {
+    if (true === $this->_checkCacheDir()) {
+      $filename = $this->getCache();
+      $filename = preg_replace('/[^0-9a-z\.\_\-]/i', '', strtolower($filename));
+      return $this->getCachePath() . $this->_getHash($filename) . $this->getExtension();
+    }
+  }
+
+    /**
+     * Get the filename hash
+     *
+     * @param $filename
+     * @return string
+     */
+  private function _getHash($filename) {
+    return sha1($filename);
+  }
+
+  /**
+   * Check whether a timestamp is still in the duration 
+   * 
+   * @param integer $timestamp
+   * @param integer $expiration
+   * @return boolean
+   */
+  private function _checkExpired($timestamp, $expiration) {
+    $result = false;
+    if ($expiration !== 0) {
+      $timeDiff = time() - $timestamp;
+      ($timeDiff > $expiration) ? $result = true : $result = false;
+    }
+    return $result;
+  }
+
+    /**
+     * Check if a writable cache directory exists and if not create a new one
+     *
+     * @return boolean
+     * @throws Exception
+     */
+  private function _checkCacheDir() {
+    if (!is_dir($this->getCachePath()) && !mkdir($this->getCachePath(), 0775, true)) {
+      throw new Exception('Unable to create cache directory ' . $this->getCachePath());
+    } elseif (!is_readable($this->getCachePath()) || !is_writable($this->getCachePath())) {
+      if (!chmod($this->getCachePath(), 0775)) {
+        throw new Exception($this->getCachePath() . ' must be readable and writeable');
+      }
+    }
+    return true;
+  }
+
+  /**
+   * Cache path Setter
+   * 
+   * @param string $path
+   * @return object
+   */
+  public function setCachePath($path) {
+    $this->_cachepath = $path;
+    return $this;
+  }
+
+  /**
+   * Cache path Getter
+   * 
+   * @return string
+   */
+  public function getCachePath() {
+    return $this->_cachepath;
+  }
+
+  /**
+   * Cache name Setter
+   * 
+   * @param string $name
+   * @return object
+   */
+  public function setCache($name) {
+    $this->_cachename = $name;
+    return $this;
+  }
+
+  /**
+   * Cache name Getter
+   * 
+   * @return string
+   */
+  public function getCache() {
+    return $this->_cachename;
+  }
+
+  /**
+   * Cache file extension Setter
+   * 
+   * @param string $ext
+   * @return object
+   */
+  public function setExtension($ext) {
+    $this->_extension = $ext;
+    return $this;
+  }
+
+  /**
+   * Cache file extension Getter
+   * 
+   * @return string
+   */
+  public function getExtension() {
+    return $this->_extension;
+  }
+
+}
diff --git a/application/modules/voiceserver/classes/license.txt b/application/modules/voiceserver/classes/license.txt
new file mode 100644
index 0000000..df6181b
--- /dev/null
+++ b/application/modules/voiceserver/classes/license.txt
@@ -0,0 +1,10 @@
+Copyright (c) 2012, Christian Metz
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+    * Neither the name of the organisation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/application/modules/voiceserver/classes/mumble.php b/application/modules/voiceserver/classes/mumble.php
index ee8a0d3..21bd8e5 100644
--- a/application/modules/voiceserver/classes/mumble.php
+++ b/application/modules/voiceserver/classes/mumble.php
@@ -18,25 +18,30 @@
 class Mumble
 {
     public static $useNewAPI;
-    
+
     private $id;
     private $_serverDatas;
     private $_channelDatas;
     private $_userDatas;
     private $_userList;
     private $_channelList;
-    
+    private $_host;
+    private $_port;
+    private $ice;
+
     public $imagePath;
     public $hideEmptyChannels;
     public $hideParentChannels;
-    
-    public function Mumble($host, $port)
+
+
+
+    public function __construct($host, $port)
     {
         $this->_host = $host;
         $this->_port = $port;
-        
-        $this->ice  = $this->init_ICE();
-        
+
+        $this->ice = $this->init_ICE();
+
         $this->id = 1;
         $this->_serverDatas = [];
         $this->_channelDatas = [];
@@ -47,7 +52,7 @@ public function Mumble($host, $port)
         $this->hideEmptyChannels = false;
         $this->hideParentChannels = false;
     }
-    
+
     /**
      * Create's a ICE object
      * @return ice object
@@ -152,7 +157,7 @@ private function update()
             $defaultconf = $this->ice->getDefaultConf();
             $serverconf = $server->getAllConf();
             $this->_serverDatas = array_merge($defaultconf, $serverconf);
-            
+
             $this->ice->getVersion($major, $minor, $patch, $text);
             $this->_serverDatas['version'] = $major . '.' . $minor . '.' . $patch;
 
@@ -232,10 +237,11 @@ private function prepareUsers($channelId)
         }
         return $users;
     }
-     
+
     /**
      * prepare Channel Data
      * @param int $channelId
+     * @param array $cnames
      * @return array
      */
     private function prepareChannelTree($channelId, $cnames = []) 
@@ -278,7 +284,7 @@ private function prepareChannelTree($channelId, $cnames = [])
      * @return array
      */
     public function getChannelTree() 
-    { 
+    {
         try {
             $this->update(); 
 
@@ -295,23 +301,22 @@ public function getChannelTree()
                 'icon'  => $this->renderImages(["mumble.png"]),        
             ];
             $channels = $this->prepareChannelTree(0);
-
         } catch (Exception $e) {
-            
+
         }
         return ['root' => $root, 'tree' => $channels];
     }
-    
+
     /**
      * get the full ServerInformations
      * @return array
+     * @throws Exception
      */
     public function getFullServerInfo() 
     {
-        
         $tree = $this->getChannelTree();
 
-        $content =  [
+        $content = [
             'name'       => $this->toHTML($this->_serverDatas['registername']),
             'uptime'     => $this->time_convert($this->ice->getUptime()),
             'channelson' => count($this->_channelDatas) - 1,
@@ -323,6 +328,7 @@ public function getFullServerInfo()
             'root'       => $tree['root'],
             'tree'       => $tree['tree'],
         ];
+
         return $content;
     }   
 }
diff --git a/application/modules/voiceserver/classes/ts3.php b/application/modules/voiceserver/classes/ts3.php
index de67cc8..ea953e5 100755
--- a/application/modules/voiceserver/classes/ts3.php
+++ b/application/modules/voiceserver/classes/ts3.php
@@ -34,7 +34,7 @@ class TS3
     public $hideParentChannels;
     public $showIcons;
 
-    public function TS3($host, $queryPort) 
+    public function __construct($host, $queryPort)
     {
         $this->_host = $host;
         $this->_queryPort = $queryPort;
@@ -153,19 +153,21 @@ private function setShowFlag($channelIds)
     private function renderImages($images) 
     { 
         $content = "";
-        foreach ($images as $image)
+        foreach ($images as $image) {
             if (file_exists(realpath('') .  $this->imagePath . $image)) {
-                $content .= '<img src="' . $this->imagePath . $image . '" alt="' . $image . '"/>';
+                $content .= '<img src="' . BASE_URL . $this->imagePath . $image . '" alt="' . $image . '"/>';
             } else {
                 $content .= $this->renderIcon($image);
             }
+        }
         return $content;
     }
-    
+
     /**
      * download and render icon
      * @param string $id
      * @return string
+     * @throws Exception
      */
     private function renderIcon($id) 
     { 
@@ -173,16 +175,22 @@ private function renderIcon($id)
         if ($id < 0) $id = $id+4294967296; 
         if ($id == "100" || $id == "200" || $id == "300" || $id == "500" || $id == "600") {
             $image = "group_" . $id . ".png";
-            $content = '<img src="' . $this->imagePath . $image . '" alt="' . $image . '"/>';
-        } else {          
+            $content = '<img src="' . BASE_URL . $this->imagePath . $image . '" alt="' . $image . '"/>';
+        } else {
             if (!file_exists(realpath('') .  $this->imagePath . 'server/') 
                 && !is_dir(realpath('') .  $this->imagePath . 'server/') 
                 && !is_writable(realpath('') .  $this->imagePath . 'server/')) {
                     @mkdir(realpath('') .  $this->imagePath . 'server/', 0755, true);
             }
             $image = $id . '.png';
-            $pfad = realpath('') .  $this->imagePath . 'server/' . $image;
+            $pfad = realpath('') . $this->imagePath . 'server/' . $image;
             if (!file_exists($pfad) && $this->showIcons)  {
+                // This is needed to prevent an error, which occured when renderIcon() called sendCommand(), while
+                // the socket is null.
+                if (!$this->_socket) {
+                    return $content;
+                }
+
                 $dl = $this->parseLine($this->sendCommand("ftinitdownload clientftfid=".rand(1,99)." name=\/icon_".$id." cid=0 cpw= seekpos=0"));
                 $ft = @fsockopen($this->_host, $dl[0]['port'], $errnum, $errstr, 2);
                 if ($ft) {
@@ -197,7 +205,7 @@ private function renderIcon($id)
                 }
             }
             if (file_exists($pfad) && $this->showIcons) {
-                $content .= '<img src="' . $this->imagePath . 'server/' . $image . '" alt="' . $image . '"/>';
+                $content .= '<img src="' . BASE_URL . $this->imagePath . 'server/' . $image . '" alt="' . $image . '"/>';
             }
         }
         return $content;
@@ -219,9 +227,9 @@ private function time_convert($time, $ms = false)
 
         if ($day>0) {
             $time = $day."d ".$hours."h ".$minutes."m ".$seconds."s";
-        } elseif ($hours>0) {
+        } elseif ($hours > 0) {
             $time = $hours."h ".$minutes."m ".$seconds."s";
-        } elseif ($minutes>0) {
+        } elseif ($minutes > 0) {
             $time = $minutes."m ".$seconds."s";
         } else {
             $time = $seconds."s";
@@ -249,8 +257,10 @@ private function queryServer()
         if ($this->_socket) {
             @socket_set_timeout($this->_socket, $this->timeout);
             $isTs3 = trim(fgets($this->_socket)) == "TS3";
-            if (!$isTs3)
+
+            if (!$isTs3) {
                 throw new Exception("Not a Teamspeak 3 server/bad query port");
+            }
 
             if ($this->_login !== false) {
                 $this->sendCommand("login client_login_name=" . $this->_login . " client_login_password=" . $this->_password);
@@ -263,7 +273,7 @@ private function queryServer()
             $response .= $this->sendCommand("clientlist -uid -times -away -voice -groups -info -icon");
             $response .= $this->sendCommand("servergrouplist");
             $response .= $this->sendCommand("channelgrouplist");
-                 
+
             return $response;
         } else {
             throw new Exception("Socket error: $errstr [$errno]");
@@ -272,13 +282,28 @@ private function queryServer()
 
     private function disconnect() 
     {
-        @fputs($this->_socket, "quit\n");
-        @fclose($this->_socket);
+        if ($this->_socket) {
+            @fputs($this->_socket, "quit\n");
+            @fclose($this->_socket);
+        }
     }
 
     private function update() 
     {
-        $response = $this->queryServer();
+        require_once 'cache.class.php';
+        $cacheKey = 'ts3';
+        $cache = new Cache(['name' => $cacheKey, 'path' => APPLICATION_PATH.'/modules/voiceserver/cache/', 'extension' => '.cache']);
+
+        // Delete expired cache and try to retrieve it after that.
+        $cache->eraseExpired();
+        $result = $cache->retrieve($cacheKey);
+
+        if (!empty($result)) {
+            $response = $result;
+        } else {
+            $response = $this->queryServer();
+        }
+
         $lines = explode("error id=0 msg=ok\n\r", $response);
         if (count($lines) == 7) {
             $this->_serverDatas = $this->parseLine($lines[1]);
@@ -310,6 +335,9 @@ private function update()
             foreach ($channelGroups as $cg) 
                 if ($cg["iconid"] > 0)
                     $this->setChannelGroupFlag($cg["cgid"], 'group_' . $cg["iconid"] . '.png');
+
+            // Store content in cache.
+            $cache->store($cacheKey, $response, 30);
         } else {
             throw new Exception("Invalid server response");
         }
@@ -432,7 +460,7 @@ private function prepareChannelTree($channelId)
 
     /**
      * get the Servertree
-     * @return array
+     * @return array|string
      */
     public function getChannelTree() 
     {
@@ -452,18 +480,20 @@ public function getChannelTree()
                 'icon'  => $this->renderImages(["ts3.png"]),        
             ];
             $channels = $this->prepareChannelTree(0);
-            
+
             $this->disconnect();
         } catch (Exception $e) {
             $this->disconnect();
             return 'offline';
         }
+
         return ['root' => $root, 'tree' => $channels];
     }
 
     /**
      * get the full ServerInformations
      * @return array
+     * @throws Exception
      */
     public function getFullServerInfo() 
     {
@@ -487,6 +517,7 @@ public function getFullServerInfo()
         } else {
             $content = 'offline';
         }
+
         return $content;
     }
 }
diff --git a/application/modules/voiceserver/classes/ventrilo.php b/application/modules/voiceserver/classes/ventrilo.php
index 0470922..7df481c 100755
--- a/application/modules/voiceserver/classes/ventrilo.php
+++ b/application/modules/voiceserver/classes/ventrilo.php
@@ -26,7 +26,7 @@ class Ventrilo
     public $hideEmptyChannels;
     public $hideParentChannels;
     
-    public function Ventrilo($host, $port) 
+    public function __construct($host, $port)
     {
         $this->_host = $host;
         $this->_port = $port;
@@ -181,7 +181,7 @@ private function queryServer()
     
     private function update() 
     {
-        $response = $this->queryServer();
+        $this->queryServer();
         
         $tmpChannels = $this->_channelList;
         $this->_channelList = [];
@@ -241,10 +241,11 @@ private function prepareUsers($channelId)
         }
         return $users;
     }
-    
+
     /**
      * prepare Channel Data
      * @param int $channelId
+     * @param array $cnames
      * @return array
      */
     private function prepareChannelTree($channelId, $cnames = []) 
@@ -291,7 +292,7 @@ private function prepareChannelTree($channelId, $cnames = [])
      * @return array
      */
     public function getChannelTree() 
-    { 
+    {
         try {
             $this->update(); 
 
@@ -308,19 +309,19 @@ public function getChannelTree()
                 'icon'  => $this->renderImages(["ventrilo.png"]),        
             ];
             $channels = $this->prepareChannelTree(0);
-            
         } catch (Exception $e) {
             
         }
         return ['root' => $root, 'tree' => $channels];
     }
-    
+
     /**
      * get the full ServerInformations
      * @return array
+     * @throws Exception
      */
     public function getFullServerInfo() 
-    {       
+    {
         $tree = $this->getChannelTree();
 
         $content =  [
@@ -336,6 +337,7 @@ public function getFullServerInfo()
             'root'       => $tree['root'],
             'tree'       => $tree['tree'],
         ];
+
         return $content;
     }
 }
diff --git a/application/modules/voiceserver/config/config.php b/application/modules/voiceserver/config/config.php
index 2e4a975..1ff19a5 100755
--- a/application/modules/voiceserver/config/config.php
+++ b/application/modules/voiceserver/config/config.php
@@ -8,25 +8,35 @@
 
 class Config extends \Ilch\Config\Install
 {
-    public $config = 
-        [
+    public $config = [
         'key' => 'voiceserver',
+        'version' => '1.0.0',
         'author' => 'Rümmler, Dirk',
         'icon_small' => 'voiceserver.png',
-        'languages' => 
-            [
-            'de_DE' => 
-                [
+        'link' => 'https://github.com/drthebrain/voiceserver',
+        'languages' => [
+            'de_DE' => [
                 'name' => 'Voiceserver',
                 'description' => 'Hier kann der Voiceserver (TS3|Ventrilo|Mumble) verwaltet werden.',
-                ],
-            'en_EN' => 
-                [
+            ],
+            'en_EN' => [
                 'name' => 'Voiceserver',
-                'description' => 'Here you can manage Voiceserver (TS3|Ventrilo|Mumble) from your Site.',
+                'description' => 'Here you can manage your voiceserver (TS3|Ventrilo|Mumble).',
+            ],
+        ],
+        'boxes' => [
+            'voiceserver' => [
+                'de_DE' => [
+                    'name' => 'Voiceserver'
                 ],
+                'en_EN' => [
+                    'name' => 'Voiceserver'
+                ]
             ]
-        ];
+        ],
+        'ilchCore' => '2.0.0',
+        'phpVersion' => '5.6'
+    ];
 
     public function install()
     {
@@ -38,4 +48,9 @@ public function uninstall()
     {
         $this->db()->queryMulti("DELETE FROM `[prefix]_config` WHERE `key` = 'voice_server'");
     }
+
+    public function getUpdate($installedVersion)
+    {
+
+    }
 }
diff --git a/application/modules/voiceserver/controllers/admin/Index.php b/application/modules/voiceserver/controllers/admin/Index.php
index ed1a017..1c620ac 100755
--- a/application/modules/voiceserver/controllers/admin/Index.php
+++ b/application/modules/voiceserver/controllers/admin/Index.php
@@ -32,7 +32,7 @@ public function indexAction()
 
         if ($this->getRequest()->isPost()) {
             $voiceserver = $this->getRequest()->getPost('voiceServer');
-            
+
             switch ($voiceserver['Type']) {
                 case 'TS3':
                     if (empty($voiceserver['IP'])) {
@@ -60,9 +60,8 @@ public function indexAction()
                     break;
                 default:
                     $message = 'Error';
-                    break;
-            }                 
-             
+            }
+
             if (isset($message)) {
                 $this->addMessage($message, 'danger');
             } else {        
diff --git a/application/modules/voiceserver/static/css/voiceserver.css b/application/modules/voiceserver/static/css/voiceserver.css
index 21d4503..8fff7a5 100755
--- a/application/modules/voiceserver/static/css/voiceserver.css
+++ b/application/modules/voiceserver/static/css/voiceserver.css
@@ -1,10 +1,11 @@
 .voiceSrvServer {
     margin-left: 0;
 }
-.voiceSrv, .voiceSrv *, .voiceSrverror {
+
+.voiceSrv, .voiceSrv * {
     background-color: #ffffff;
-    color: #00000;
-    font-family: Verdana;
+    color: #000000;
+    font-family: Verdana, serif;
     font-size: 12px;
 }
 
diff --git a/application/modules/voiceserver/translations/de.php b/application/modules/voiceserver/translations/de.php
index e04ea43..a13439b 100755
--- a/application/modules/voiceserver/translations/de.php
+++ b/application/modules/voiceserver/translations/de.php
@@ -4,15 +4,14 @@
  * @package ilch
  */
 
-return 
-    [
+return [
     'menuVoiceServer'      => 'Voiceserver',   
     'voiceServerType'      => 'Server Type',
-    'voiceServerIP'        => 'Server IP',
+    'voiceServerIP'        => 'Server IP-Adresse',
     'voiceServerPort'      => 'Server Port',
     'voiceServerQPort'     => 'Server Queryport',
     'voiceServerCIcons'    => 'Benutzerdefinierte Icons',
-    'voiceServerHideEmpty' => 'verstecke leere Kanäle',
+    'voiceServerHideEmpty' => 'Verstecke leere Kanäle',
     'voiceServerRefresh'   => 'Refreshzeit',
     
     'missingIP'            => 'Bitte IP Adresse eingeben',
@@ -20,11 +19,15 @@
     'missingPort'          => 'Bitte Port eingeben',
     
     'tableName'            => 'Servername',
-    'tableOS'              => 'Betriebsystem',
+    'tableOS'              => 'Betriebssystem',
     'tableUptime'          => 'Laufzeit',
     'tableChannels'        => 'Kanäle',
     'tableUser'            => 'Benutzer',
     'tableChannel'         => 'Kanal',
     'tableLoggedin'        => 'Eingeloggt seit',
     'tableAfK'             => 'AFK seit',
-    ];
+
+    'server' => 'Server',
+    'version' => 'Version',
+    'welcomeMessage' => 'Willkommensnachricht',
+];
diff --git a/application/modules/voiceserver/translations/en.php b/application/modules/voiceserver/translations/en.php
index 14b6098..b5e258a 100755
--- a/application/modules/voiceserver/translations/en.php
+++ b/application/modules/voiceserver/translations/en.php
@@ -4,28 +4,31 @@
  * @package ilch
  */
 
-return 
-    [
+return [
     'menuVoiceServer'      => 'Voiceserver',
-    'voiceServerType'      => 'Server Type',
-    'voiceServerIP'        => 'Server IP',
-    'voiceServerPort'      => 'Server Port',
-    'voiceServerQPort'     => 'Server Queryport',
-    'voiceServerCIcons'    => 'Custom Icons',
-    'voiceServerHideEmpty' => 'Hidden empty channels',
+    'voiceServerType'      => 'Server type',
+    'voiceServerIP'        => 'Server IP address',
+    'voiceServerPort'      => 'Server port',
+    'voiceServerQPort'     => 'Server queryport',
+    'voiceServerCIcons'    => 'Custom icons',
+    'voiceServerHideEmpty' => 'Hide empty channels',
     'voiceServerRefresh'   => 'Refreshtime',
     
     
     'missingIP'            => 'Please enter IP address',
-    'missingQPort'         => 'Please enter Queryport',
-    'missingPort'          => 'Please enter Port',
+    'missingQPort'         => 'Please enter queryport',
+    'missingPort'          => 'Please enter port',
     
     'tableName'            => 'Servername',
-    'tableOS'              => 'System',
+    'tableOS'              => 'Operating system',
     'tableUptime'          => 'Uptime',
     'tableChannels'        => 'Channels',
     'tableUser'            => 'User',
     'tableChannel'         => 'Channel',
-    'tableLoggedin'        => 'Logged since',
+    'tableLoggedin'        => 'Logged in since',
     'tableAfK'             => 'AFK since',
-    ];
+
+    'server' => 'Server',
+    'version' => 'Version',
+    'welcomeMessage' => 'Welcome message',
+];
diff --git a/application/modules/voiceserver/views/admin/index/index.php b/application/modules/voiceserver/views/admin/index/index.php
index 3cdab0e..6e30f25 100755
--- a/application/modules/voiceserver/views/admin/index/index.php
+++ b/application/modules/voiceserver/views/admin/index/index.php
@@ -2,7 +2,7 @@
 
 <form class="form-horizontal" method="POST" action="">
     <?=$this->getTokenField() ?>
-    <? $voiceServer = $this->get('voiceServer'); ?>
+    <?php $voiceServer = $this->get('voiceServer'); ?>
 
     <div class="form-group">
         <label for="voiceServer[Type]" class="col-lg-2 control-label">
@@ -92,7 +92,7 @@
                    value="<?=isset($voiceServer['Refresh']) ? $this->escape($voiceServer['Refresh']) : '30' ?>" />
         </div>
     </div>
-    
+
     <?=$this->getSaveBar() ?>
 </form>
 
diff --git a/application/modules/voiceserver/views/ajax/refreshVoice.php b/application/modules/voiceserver/views/ajax/refreshVoice.php
index 58fc458..bdccda4 100755
--- a/application/modules/voiceserver/views/ajax/refreshVoice.php
+++ b/application/modules/voiceserver/views/ajax/refreshVoice.php
@@ -1,35 +1,37 @@
 <?php $voiceServer = $this->get('voiceServer'); ?>
 
 <?php function getVoiceserverBoxView($items) { ?>
-    <?php $last_channel = end((array_keys($items))); ?>
-    <?php foreach ($items as $key => $item): ?>
-        <li <?php if($last_channel == $key): ?>class="last"<?php endif; ?> >
-            <a href="<?=$item['link'] ?>" title="<?=$item['topic'] ?>" >
-                <?=$item['icon'] . $item['name'] ?>
-                <?php if (isset($item['flags'])): ?>
-                    <div class="voiceSrvFlags"><?=$item['flags'] ?></div>
+    <?php if(is_array($items) && count($items) > 0): ?>
+        <?php $last_channel = array_keys($items)[count($items)-1]; ?>
+        <?php foreach ($items as $key => $item): ?>
+            <li <?php if($last_channel == $key): ?>class="last"<?php endif; ?> >
+                <a href="<?=$item['link'] ?>" title="<?=$item['topic'] ?>" >
+                    <?=$item['icon'] . $item['name'] ?>
+                    <?php if (isset($item['flags'])): ?>
+                        <div class="voiceSrvFlags"><?=$item['flags'] ?></div>
+                    <?php endif; ?>
+                </a>
+                <?php if (isset($item['users'])): ?>
+                    <ul>
+                        <?php $last_user = array_keys($item['users'])[count($item['users'])-1]; ?>
+                        <?php foreach ($item['users'] as $u_key => $user): ?>
+                            <li <?php if (!isset($item['children']) && $last_user == $u_key): ?>class="last"<?php endif; ?> >
+                                <?=$user['icon'] . $user['name'] ?>
+                                <?php if (isset($user['flags'])): ?>
+                                    <div class="voiceSrvFlags"><?=$user['flags'] ?></div>
+                                <?php endif; ?>
+                            </li>
+                        <?php endforeach; ?>
+                    </ul>
+                <?php endif; ?>                
+                <?php if (isset($item['children'])): ?>
+                    <ul>
+                        <?php getVoiceserverBoxView($item['children']); ?>  
+                    </ul>
                 <?php endif; ?>
-            </a>
-            <?php if (isset($item['users'])): ?>
-                <ul>
-                    <?php $last_user = end((array_keys($item['users']))); ?>
-                    <?php foreach ($item['users'] as $u_key => $user): ?>
-                        <li <?php if (!isset($item['children']) && $last_user == $u_key): ?>class="last"<?php endif; ?> >
-                            <?=$user['icon'] . $user['name'] ?>
-                            <?php if (isset($user['flags'])): ?>
-                                <div class="voiceSrvFlags"><?=$user['flags'] ?></div>
-                            <?php endif; ?>
-                        </li>
-                    <?php endforeach; ?>
-                </ul>
-            <?php endif; ?>                
-            <?php if (isset($item['children'])): ?>
-                <ul>
-                    <?php getVoiceserverBoxView($item['children']); ?>  
-                </ul>
-            <?php endif; ?>
-        </li>
-    <?php endforeach; ?>
+            </li>
+        <?php endforeach; ?>
+    <?php endif; ?>
 <?php }; ?>
 
 <?php
diff --git a/application/modules/voiceserver/views/index/index.php b/application/modules/voiceserver/views/index/index.php
index bed4241..c470102 100755
--- a/application/modules/voiceserver/views/index/index.php
+++ b/application/modules/voiceserver/views/index/index.php
@@ -3,35 +3,37 @@
 <?php $voiceServer = $this->get('voiceServer'); ?>
 
 <?php function getVoiceserverView($items) { ?>
-    <?php $last_channel = end((array_keys($items))); ?>
-    <?php foreach ($items as $key => $item): ?>
-        <li <?php if($last_channel == $key): ?>class="last"<?php endif; ?> >
-            <a href="<?=$item['link'] ?>" title="<?=$item['topic'] ?>" >
-                <?=$item['icon'] . $item['name'] ?>
-                <?php if (isset($item['flags'])): ?>
-                    <div class="voiceSrvFlags"><?=$item['flags'] ?></div>
+    <?php if(is_array($items) && count($items) > 0): ?>
+        <?php $last_channel = array_keys($items)[count($items)-1]; ?>
+        <?php foreach ($items as $key => $item): ?>
+            <li <?php if($last_channel == $key): ?>class="last"<?php endif; ?> >
+                <a href="<?=$item['link'] ?>" title="<?=$item['topic'] ?>" >
+                    <?=$item['icon'] . $item['name'] ?>
+                    <?php if (isset($item['flags'])): ?>
+                        <div class="voiceSrvFlags"><?=$item['flags'] ?></div>
+                    <?php endif; ?>
+                </a>
+                <?php if (isset($item['users'])): ?>
+                    <ul>
+                        <?php $last_user = array_keys($item['users'])[count($item['users'])-1]; ?>
+                        <?php foreach ($item['users'] as $u_key => $user): ?>
+                            <li <?php if (!isset($item['children']) && $last_user == $u_key): ?>class="last"<?php endif; ?> >
+                                <?=$user['icon'] . $user['name'] ?>
+                                <?php if (isset($user['flags'])): ?>
+                                    <div class="voiceSrvFlags"><?=$user['flags'] ?></div>
+                                <?php endif; ?>
+                            </li>
+                        <?php endforeach; ?>
+                    </ul>
+                <?php endif; ?>                
+                <?php if (isset($item['children'])): ?>
+                    <ul>
+                        <?php getVoiceserverView($item['children']); ?>  
+                    </ul>
                 <?php endif; ?>
-            </a>
-            <?php if (isset($item['users'])): ?>
-                <ul>
-                    <?php $last_user = end((array_keys($item['users']))); ?>
-                    <?php foreach ($item['users'] as $u_key => $user): ?>
-                        <li <?php if (!isset($item['children']) && $last_user == $u_key): ?>class="last"<?php endif; ?> >
-                            <?=$user['icon'] . $user['name'] ?>
-                            <?php if (isset($user['flags'])): ?>
-                                <div class="voiceSrvFlags"><?=$user['flags'] ?></div>
-                            <?php endif; ?>
-                        </li>
-                    <?php endforeach; ?>
-                </ul>
-            <?php endif; ?>                
-            <?php if (isset($item['children'])): ?>
-                <ul>
-                    <?php getVoiceserverView($item['children']); ?>  
-                </ul>
-            <?php endif; ?>
-        </li>
-    <?php endforeach; ?>
+            </li>
+        <?php endforeach; ?>
+    <?php endif; ?>
 <?php }; ?>
 
 <?php
@@ -63,7 +65,6 @@
         $datas = $ventriloviewer->getFullServerInfo(); 
         break;
     default:
-        break;
 }
 ?>
 
@@ -141,19 +142,19 @@
                 <table>
                     <tbody>
                         <tr>
-                            <td><b>Server:</b></td>
+                            <td><b><?=$this->getTrans('server') ?>:</b></td>
                         </tr>
                         <tr>
                             <td><?=$datas['name'] ?><br><br></td>
                         </tr>
                         <tr>
-                            <td><b>Server IP:</b></td>
+                            <td><b><?=$this->getTrans('voiceServerIP') ?>:</b></td>
                         </tr>
                         <tr>
                             <td><?=$datas['server'] ?><br><br></td>
                         </tr>
                         <tr>
-                            <td><b>Version:</b></td>
+                            <td><b><?=$this->getTrans('version') ?>:</b></td>
                         </tr>
                         <tr>
                             <td><?=$datas['version'] ?><br><br></td>
@@ -164,7 +165,7 @@
                             </tr>
                         <?php endif; ?>
                         <tr>
-                            <td><b>Welcome Message:</b></td>
+                            <td><b><?=$this->getTrans('welcomeMessage') ?>:</b></td>
                         </tr>
                         <tr>
                             <td><?=$this->getHtmlFromBBCode($datas['welcome']) ?><br><br></td>