Title: Error appears above admin panel
Last modified: August 19, 2016

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# Error appears above admin panel

 *  Resolved [rcdailey](https://wordpress.org/support/users/rcdailey/)
 * (@rcdailey)
 * [16 years, 2 months ago](https://wordpress.org/support/topic/error-appears-above-admin-panel/)
 * At the very top of the admin panel in WordPress (I’m hosting this on my own server),
   I get this:
 * Warning: call_user_func_array() [function.call-user-func-array]: First argument
   is expected to be a valid callback, ‘wpfileman_admin’ was given in /homepages/
   21/d299388940/htdocs/robert-dailey/wp-includes/plugin.php on line 339
 * I’m using the dev version of Chrome (v5) on Mac OSX. Any reason for this? I’ve
   never had any problems before, but this is the first time I’ve visited my website
   on a mac.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [rcdailey](https://wordpress.org/support/users/rcdailey/)
 * (@rcdailey)
 * [16 years, 2 months ago](https://wordpress.org/support/topic/error-appears-above-admin-panel/#post-1403841)
 * More information:
 * I have WP-FileManager installed as a plugin, and I suspected it may be the problem.
   However, when trying to “Deactivate” it, I get the following error page:
 * Warning: call_user_func_array() [function.call-user-func-array]: First argument
   is expected to be a valid callback, ‘wpfileman_admin’ was given in /homepages/
   21/d299388940/htdocs/robert-dailey/wp-includes/plugin.php on line 339
 * Warning: Cannot modify header information – headers already sent by (output started
   at /homepages/21/d299388940/htdocs/robert-dailey/wp-includes/plugin.php:339) 
   in /homepages/21/d299388940/htdocs/robert-dailey/wp-includes/pluggable.php on
   line 868
 *  [MichaelH](https://wordpress.org/support/users/michaelh/)
 * (@michaelh)
 * [16 years, 2 months ago](https://wordpress.org/support/topic/error-appears-above-admin-panel/#post-1403843)
 * Might try using FTP and delete the plugin folder in your wp-content/plugins folder.
 *  Thread Starter [rcdailey](https://wordpress.org/support/users/rcdailey/)
 * (@rcdailey)
 * [16 years, 2 months ago](https://wordpress.org/support/topic/error-appears-above-admin-panel/#post-1403939)
 * Yep, this fixed it. I guess the plugin is busted.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Error appears above admin panel’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [rcdailey](https://wordpress.org/support/users/rcdailey/)
 * Last activity: [16 years, 2 months ago](https://wordpress.org/support/topic/error-appears-above-admin-panel/#post-1403939)
 * Status: resolved

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