Title: error: call_user_func()
Last modified: August 30, 2016

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# error: call_user_func()

 *  [dogstalker](https://wordpress.org/support/users/dogstalker/)
 * (@dogstalker)
 * [10 years, 12 months ago](https://wordpress.org/support/topic/error-592/)
 * After deleting and reinstalling plugin get this error:
 * Warning: call_user_func() expects parameter 1 to be a valid callback, class ‘
   wfScanEngine’ does not have a method ‘scan_options’ in /xxx/xxx/public_html/wp-
   content/plugins/wordfence/lib/wfScanEngine.php on line 126 0
 * PHP Version is 5.4.40
    WF install is Version is 6.0.5
 * Any suggestions?
 * Thank you!
 * [https://wordpress.org/plugins/wordfence/](https://wordpress.org/plugins/wordfence/)

Viewing 1 replies (of 1 total)

 *  [donofrio](https://wordpress.org/support/users/donofrio/)
 * (@donofrio)
 * [10 years, 12 months ago](https://wordpress.org/support/topic/error-592/#post-6190574)
 * I just noticed the same warning as well…..please advise.
 * —
    __________________________________________________________________ [https://www.linkedin.com/in/donofrio](https://www.linkedin.com/in/donofrio)–
   734-743-1743

Viewing 1 replies (of 1 total)

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## Tags

 * [call_user_func](https://wordpress.org/support/topic-tag/call_user_func/)

 * 1 reply
 * 2 participants
 * Last reply from: [donofrio](https://wordpress.org/support/users/donofrio/)
 * Last activity: [10 years, 12 months ago](https://wordpress.org/support/topic/error-592/#post-6190574)
 * Status: not resolved