Title: Warning: function not found or invalid
Last modified: August 30, 2016

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# Warning: function not found or invalid

 *  [Lemnis](https://wordpress.org/support/users/kgodoyb/)
 * (@kgodoyb)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/warning-function-not-found-or-invalid/)
 * Hi there!
 * I have this msg in my website:
 * Warning:
    _call\_user\_func\_array() expects parameter 1 to be a valid callback,
   function ‘tc\_header\_header\_end’ not found or invalid function name in /home/
   xxxxxx/public\_html/wp-includes/plugin.php on line 503_
 * Line 503 in wp-includes/plugin.php:
    _call\_user\_func\_array($the\_[‘function’],
   array\_slice($args, 0, (int) $the\_[‘accepted\_args’]));_
 * Please, what’s wrong? I disable all my plugins (only 2) but it keep the error.
 * Thank you so much!

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [juggledad](https://wordpress.org/support/users/juggledad/)
 * (@juggledad)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/warning-function-not-found-or-invalid/#post-6731394)
 * When did this start happening?
    What have you recently changed? Done any updates
   recently?
 * Try temporary swapping to the twenty-fifteen theme and see is you get the error.
   If you don’t then it is probably an issue with the theme.
 *  Thread Starter [Lemnis](https://wordpress.org/support/users/kgodoyb/)
 * (@kgodoyb)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/warning-function-not-found-or-invalid/#post-6731575)
 * I did the migration to another host.
    So I did backup of database and files (
   public_html).
 * I can’t access the administration page, the site was in a redirect looping and
   now I can see only the [homepage](http://tvecomundi.com.br) with that warning
   message.
 * There is a paid wordpress support to solve it?
 * Thank you so much for your attention!
 *  [juggledad](https://wordpress.org/support/users/juggledad/)
 * (@juggledad)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/warning-function-not-found-or-invalid/#post-6731617)
 * the fourms here are free support there is no paid support – if you want to hire
   someone you could try jobs.wordpress.net
 * when you migrated did you change the domain name or did you move that to the 
   new host also?
 * what does your .htaccess file look like?
 *  Thread Starter [Lemnis](https://wordpress.org/support/users/kgodoyb/)
 * (@kgodoyb)
 * [10 years, 6 months ago](https://wordpress.org/support/topic/warning-function-not-found-or-invalid/#post-6731696)
 * Yes, I changed the domain name.
 * My .htaccess:
 *     ```
       # Handler PHP 5.5
       AddType application/x-httpd-php55 .php
   
       <IfModule mod_suphp.c>
       suPHP_ConfigPath /opt/php55/lib/php.ini
       </IfModule>
   
       # BEGIN WordPress
       <IfModule mod_rewrite.c>
       RewriteEngine On
       RewriteBase /
       RewriteRule ^index\.php$ - [L]
       RewriteCond %{REQUEST_FILENAME} !-f
       RewriteCond %{REQUEST_FILENAME} !-d
       RewriteRule . /index.php [L]
       </IfModule>
   
       # END WordPress
       ```
   

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Warning: function not found or invalid’ is closed to new replies.

## Tags

 * [plugin.php](https://wordpress.org/support/topic-tag/plugin-php/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 2 participants
 * Last reply from: [Lemnis](https://wordpress.org/support/users/kgodoyb/)
 * Last activity: [10 years, 6 months ago](https://wordpress.org/support/topic/warning-function-not-found-or-invalid/#post-6731696)
 * Status: not resolved

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