Title: mayhemer's Topics | WordPress.org

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# mayhemer

  [  ](https://wordpress.org/support/users/mayhemer/)

 *   [Profile](https://wordpress.org/support/users/mayhemer/)
 *   [Topics Started](https://wordpress.org/support/users/mayhemer/topics/)
 *   [Replies Created](https://wordpress.org/support/users/mayhemer/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/mayhemer/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/mayhemer/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/mayhemer/engagements/)
 *   [Favorites](https://wordpress.org/support/users/mayhemer/favorites/)

 Search topics:

## Forum Topics Started

    - Topic
    - Participants
    - Replies
    - Last Post
 *  -  [[W3 Total Cache] Fatal error: Call to undefined function apply_filters() in define.php on line 11](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-apply_filters-in-definephp-on-line-11/)
    -  Started by: [mayhemer](https://wordpress.org/support/users/mayhemer/)  in:
      [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    - 4
    - 5
    -  [13 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-apply_filters-in-definephp-on-line-11/#post-3824837)
    -  [Pereira](https://wordpress.org/support/users/marcosmyara/)
 *