diff --git a/Events.php b/Events.php
index a6bf8b9..cad74c3 100644
--- a/Events.php
+++ b/Events.php
@@ -29,6 +29,7 @@ public static function onProfileSidebarInit($event)
     public static function onAfterInsertInvite($event)
     {
         try {
+            if ( Yii::$app->user->isGuest ) return;
             $identity = Yii::$app->user->getIdentity();
             $sponsor = new Sponsor();
             $sponsor->invited_email = strtolower(trim($event->sender->email));