Title: Invalid Function Warning
Last modified: August 30, 2016

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# Invalid Function Warning

 *  [dsj246](https://wordpress.org/support/users/dsj246/)
 * (@dsj246)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/invalid-function-warning/)
 * I have duplicated a site onto my server, to get it up and running before I switch
   the nameservers over. Right at the top and the bottom of the site I now get the
   following warning;
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   wpa54064_inspect_scripts’ not found or invalid function name in /home/droyglas/
   public_html/wp-includes/plugin.php on line 496
 * The weird thing is this warning is not on the original site ([http://www.droylsdenglass.co.uk](http://www.droylsdenglass.co.uk))
   only on the version on my server.
 * Hope someone can help as I really want to transfer the hosting of this site ASAP

The topic ‘Invalid Function Warning’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [dsj246](https://wordpress.org/support/users/dsj246/)
 * Last activity: [10 years, 11 months ago](https://wordpress.org/support/topic/invalid-function-warning/)
 * Status: not resolved

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