Title: Problem Grolle
Last modified: December 8, 2018

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# Problem Grolle

 *  Resolved [carlager](https://wordpress.org/support/users/carlager/)
 * (@carlager)
 * [7 years, 6 months ago](https://wordpress.org/support/topic/problem-grolle/)
 * I get the message
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   my_gwolle_gb_admin_reply_header(‘ not found or invalid function name in /customers/
   9/4/7/heron3050.com/httpd.www/wp-includes/class-wp-hook.php on line 288
 * Line 288 says
 * $value = call_user_func_array( $the_[‘function’], array_slice( $args, 0, (int)
   $the_[‘accepted_args’] ) );
 * And idea on what is wrong ?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fproblem-grolle%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [Marcel Pol](https://wordpress.org/support/users/mpol/)
 * (@mpol)
 * [7 years, 6 months ago](https://wordpress.org/support/topic/problem-grolle/#post-10964678)
 * It seems you once added custom code to the website, that is not there anymore.
   
   Did you change something recently?

Viewing 1 replies (of 1 total)

The topic ‘Problem Grolle’ is closed to new replies.

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## Tags

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 * 1 reply
 * 2 participants
 * Last reply from: [Marcel Pol](https://wordpress.org/support/users/mpol/)
 * Last activity: [7 years, 6 months ago](https://wordpress.org/support/topic/problem-grolle/#post-10964678)
 * Status: resolved