Authentication Tokens

[Bromponie]

Getting this error when "Generate New Token" :

Error: Unknown username. Check again or try your email address.

[madebyaris]

Hi @Bromponie

Can you share your username on your WP site if possible? I tested on my end and it's working great, so I think there's issue with the username / email name stuff.

[Bromponie]

Hi, I have tried other usernames with full administrator access with the same issue, I have uninstalled the plugin and re-installed, same issue. The website is "https://ashe.co.za/wp/" the "/wp" has caused many issues for me in the past, could this be related? I am also running the "JWT Authentication for WP-API" plugin. This could be conflicting I assume. Thank You

…

On Mon, 18 Aug 2025 at 14:32, Aris Setiawan ***@***.***> wrote: *madebyaris* left a comment (Automattic/wordpress-mcp#99) <#99 (comment)> Hi @Bromponie <https://github.com/Bromponie> Can you share your username on your WP site if possible? I tested on my end and it's working great, so I think there's issue with the username / email name stuff. — Reply to this email directly, view it on GitHub <#99 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AF3Q6Z3PBJP3H6B7NOLYE7L3OHBVBAVCNFSM6AAAAACEE26OAKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTCOJWGUZTGNRUGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[madebyaris]

Thanks for the update, I'll reproduce the issues

it's seems the issue lies on the plugin, I'm sure the /wp installation has nothing to do with it, but I'll ensure more about it.

[Bromponie]

Error Log : [18-Aug-2025 14:05:59 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 Hope this helps.

…

On Mon, 18 Aug 2025 at 15:52, Aris Setiawan ***@***.***> wrote: *madebyaris* left a comment (Automattic/wordpress-mcp#99) <#99 (comment)> Thanks for the update, I'll reproduce the issues it's seems the issue lies on the plugin, I'm sure the /wp installation has nothing to do with it, but I'll ensure more about it. — Reply to this email directly, view it on GitHub <#99 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AF3Q6Z5ZXAK6L6PJ5J52K233OHLAZAVCNFSM6AAAAACEE26OAKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTCOJXGAZTKNJRGI> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[Bromponie]

Enabled Debugging [19-Aug-2025 08:04:13 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:04:20 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:04:22 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:04:40 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:04:41 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:04:50 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:12 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:15 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:19 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:19 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:19 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:19 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:19 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:20 UTC] [WordPress MCP] [2025-08-19 08:05:20] Invalid parameter name: Blogroll Recommendations in /wp/v2/settings POST. The parameter was skipped. [19-Aug-2025 08:05:28 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:28 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:28 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:32 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:32 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:32 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:32 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:32 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:32 UTC] [WordPress MCP] [2025-08-19 08:05:32] Invalid parameter name: Blogroll Recommendations in /wp/v2/settings POST. The parameter was skipped. [19-Aug-2025 08:05:40 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:42 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:43 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:43 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:43 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:43 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:43 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:43 UTC] [WordPress MCP] [2025-08-19 08:05:43] Invalid parameter name: Blogroll Recommendations in /wp/v2/settings POST. The parameter was skipped. [19-Aug-2025 08:05:44 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:05:45 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:45 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:45 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:45 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:45 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:46 UTC] [WordPress MCP] [2025-08-19 08:05:46] Invalid parameter name: Blogroll Recommendations in /wp/v2/settings POST. The parameter was skipped. [19-Aug-2025 08:05:48 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:48 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:48 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:48 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:48 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:05:48 UTC] [WordPress MCP] [2025-08-19 08:05:48] Invalid parameter name: Blogroll Recommendations in /wp/v2/settings POST. The parameter was skipped. [19-Aug-2025 08:05:48 UTC] PHP Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/ashecoza/public_html/wp/wp-includes/pluggable.php on line 607 [19-Aug-2025 08:05:58 UTC] PHP Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>health-check</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href=" https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /home/ashecoza/public_html/wp/wp-includes/functions.php on line 6121 [19-Aug-2025 08:06:41 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:41 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:41 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:41 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:41 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:50 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:50 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:50 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:50 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:06:50 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:29 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:29 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:29 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:29 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:29 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:38 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:38 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:38 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:38 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:07:38 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:08:04 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:08:04 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:08:04 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:08:04 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 [19-Aug-2025 08:08:04 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108

…

On Mon, 18 Aug 2025 at 16:09, Brom Ponie ***@***.***> wrote: Error Log : [18-Aug-2025 14:05:59 UTC] PHP Warning: Undefined array key "description" in /home/ashecoza/public_html/wp/wp-content/plugins/wordpress-mcp/includes/Core/RegisterMcpTool.php on line 108 Hope this helps. On Mon, 18 Aug 2025 at 15:52, Aris Setiawan ***@***.***> wrote: > *madebyaris* left a comment (Automattic/wordpress-mcp#99) > <#99 (comment)> > > Thanks for the update, I'll reproduce the issues > > it's seems the issue lies on the plugin, I'm sure the /wp installation > has nothing to do with it, but I'll ensure more about it. > > — > Reply to this email directly, view it on GitHub > <#99 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AF3Q6Z5ZXAK6L6PJ5J52K233OHLAZAVCNFSM6AAAAACEE26OAKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTCOJXGAZTKNJRGI> > . > You are receiving this because you were mentioned.Message ID: > ***@***.***> >

[EdithAllison]

I had the same error and traced it back to an incompatibility with the plugin https://wordpress.org/plugins/jwt-authentication-for-wp-rest-api/.

If JWT Authentication for the WP REST API is active, the token generation in WordPress MCP will fail.