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1. xRommelx
   Member
   Posted 1 year ago #

   hi, i am using WP in a project, everything was going perfect till i installed Comment Validation plugin - http://bassistance.de/wordpress-plugin-comment-validation/
   i don't know why but in admin panel i see this error
   Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'theme_menu' was given in /home/pixelcr/public_html/revistabellasartes/wp/wp-includes/plugin.php on line 395
   when i try to install a new plugin the errors are those
   Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'theme_menu' was given in /home/pixelcr/public_html/revistabellasartes/wp/wp-includes/plugin.php on line 395

   Warning: Cannot modify header information - headers already sent by (output started at /home/pixelcr/public_html/revistabellasartes/wp/wp-includes/plugin.php:395) in /home/pixelcr/public_html/revistabellasartes/wp/wp-includes/pluggable.php on line 890

   Warning: Cannot modify header information - headers already sent by (output started at /home/pixelcr/public_html/revistabellasartes/wp/wp-includes/plugin.php:395) in /home/pixelcr/public_html/revistabellasartes/wp/wp-includes/pluggable.php on line 890

   i tried all possibles fixes and solutions in found on internet, but not luck
   i hope someone can help me

   here some pictures :

   dashboard:

   Plugin List:

   trying to install a plugin:

   - Regards

2. xRommelx
   Member
   Posted 1 year ago #

   i resolve the problem, the problem was with the template in am making
   in this theme i have a function then create a panel in admin section, the wrong code was this
   

   function admin_menu(){
   	add_menu_page('Administrador','Administrador de Contenido','edit_themes',basename(__FILE__),'theme_options');
   	}
   function theme_options(){
   	}
   add_action('admin_menu','admin_options');

   if u read and put attention the add_action is calling a function then don't exist, so this was the problem
   the correct code is this
   

   function admin_menu(){
   	add_menu_page('Administrador','Administrador de Contenido','edit_themes',basename(__FILE__),'theme_options');
   	}
   function theme_options(){
   	}
   add_action('admin_menu','admin_menu');

   - I hope this help to others ppl in the future

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