Title: Error message: Warning: call_user_func_array()
Last modified: August 19, 2016

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# Error message: Warning: call_user_func_array()

 *  [drgene113](https://wordpress.org/support/users/drgene113/)
 * (@drgene113)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/)
 * I am getting an error that suddenly appeared on my Web site:
    [http://www.mmti.org/podcasts/massagetherapy](http://www.mmti.org/podcasts/massagetherapy)
 * Warning: call_user_func_array() [function.call-user-func-array]: First argument
   is expected to be a valid callback, ‘sfg_404’ was given in /home/drgenelmt/mmti.
   org/podcasts/massagetherapy/wp-includes/plugin.php on line 339
 * Can anyone help?
    Thanks, Gene

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030100)
 * Have you installed any new plugins recently?
 *  Thread Starter [drgene113](https://wordpress.org/support/users/drgene113/)
 * (@drgene113)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030116)
 * Yes, I have a ton installed but dont know which one might be causing this.
 * Does the sfg_404 refer to any typical plugin?
    Gene
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030135)
 * Impossible to say from here. I don’t think there’s any easy way to do this. I’d
   suggest that you bite the bullet, deactivate all of your plugins and then reactivate
   them one-by-one. Test the site after each reactivation. Eventually, you’ll narrow
   it down to a single plugin. It’s then a case of deciding whether this is a case
   of a single faulty plugin or, worst case, you have two plugins that are conflicting
   with one another.
 * If the problem only appeared recently, then it’s like;ly to be associated with
   a plugin that you installed recently.
 *  Thread Starter [drgene113](https://wordpress.org/support/users/drgene113/)
 * (@drgene113)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030190)
 * I am almost done deactivating my plugins.
    If that doesn’t solve it, could it
   be a database problem?
 * If I were to delete all pliufgins from the plugin folder, without deactivating
   them, would that leave behind code that deactivating a plugin automaticvally 
   removes?
 * I ask because it might just be easier for me to delete everything and start over.
 * Gene
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030266)
 * If you look at the original error message `plugin.php` is the script that’s currently
   generating an error. Line 339 is the sections of `plugin.php` that hooks a function
   to a specific action. So, unless you’ve added an action within functions.php,
   the most likely cause would seem to be a plugin. That said, plugins do store 
   settings in the wp_options table, so I suppose, if that table was damaged, it
   could generate an error like this. I’d just expect to see far more errors.
 * If it comes to it, a clean install might be the only way to get rid of this but
   hopefully, you’ll be able to pin it on just 1 plugin.
 *  Thread Starter [drgene113](https://wordpress.org/support/users/drgene113/)
 * (@drgene113)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030284)
 * I discovered that it was the Simple Forum plugin.
    I think during an upgrade,
   something got screwed up.
 * It’s working fine on my other blogs so this is odd.
    I inactivarted the plugin,
   deleted the files from the directory abnd removed all references to any sf…. 
   table in the database.
 * When I recopied the files to attempt to reactivate the plugin I got a permalink
   error.
 * Very frustrating!
 * Thanks you for your help. Any other suggestions?
    Gene
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030296)
 * When you re-uploaded the plugin, did you use a fresh copy/download?
 * It’s possible that it could be a conflict between Simple Forum and one of your
   other plugins, bit as you say that you have quite few plugins, trying to pin 
   down a conflict could be like trying to find a needle in a haystack.
 * It might be worth contacting the author of Simple Forum to see if s/he is aware
   of any conflicts.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Error message: Warning: call_user_func_array()’ is closed to new replies.

 * 7 replies
 * 2 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [17 years, 2 months ago](https://wordpress.org/support/topic/error-message-warning-call_user_func_array/#post-1030296)
 * Status: not resolved

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