Title: Fatal Error: facebook class
Last modified: August 22, 2016

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# Fatal Error: facebook class

 *  Resolved [jjwerkman](https://wordpress.org/support/users/jjwerkman/)
 * (@jjwerkman)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-facebook-class/)
 * Hi, I’ve have problem with the Users Ultra lite plugin. When I click logon, I
   get a strange error:
    Fatal error: Cannot redeclare class Facebook in /wp-content/
   plugins/users-ultra/libs/fbapi/src/facebook.php on line 160 I saw someone with
   a problem what looks like this one, but in that case there was another plugin
   installed which caused the problem. I use also other plugins but none of them
   are social plugins. What can I do to solve this problem? Thanks.
 * [https://wordpress.org/plugins/users-ultra/](https://wordpress.org/plugins/users-ultra/)

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

 *  Plugin Contributor [Plugins Area](https://wordpress.org/support/users/usersultra/)
 * (@usersultra)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-facebook-class/#post-5398928)
 * Hi jjwerkman,
 * Thank you very much for your post.
 * This has nothing to see with our plugin. If you’re seeing that message it means
   that some of your plugins declared the Facebook classes before Users Ultra is
   being activated.
 * By checking the error message you will see that Users Ultra cannot run properly
   because another plugin declared that class. Users Ultra just stops working when
   trying to declare “class Facebook”.
 * We’ve replied to your question here [http://www.usersultra.com/support/forums/topic/fatal-error-cannot-redeclare-class-facebook/](http://www.usersultra.com/support/forums/topic/fatal-error-cannot-redeclare-class-facebook/).
 * Could you kindly avoid posting twice for the same issue? I don’t mean to sound
   rude but.. it looks like it’s the same issue reported on WordPress and our Forums.
 * Once again, thank you very much for your post and cooperation.
    Best Regards 
   Alex
 *  Thread Starter [jjwerkman](https://wordpress.org/support/users/jjwerkman/)
 * (@jjwerkman)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-facebook-class/#post-5398943)
 * Hi Alex,
 * Thanks for your reply.
    Sorry for posting twice. 🙂
 *  Plugin Contributor [Plugins Area](https://wordpress.org/support/users/usersultra/)
 * (@usersultra)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-facebook-class/#post-5398948)
 * Hi jjwerkman,
 * No worries and thank you for your understanding.
 * Best Regards
    Alex

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

The topic ‘Fatal Error: facebook class’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/users-ultra_a880cc.svg)
 * [Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin](https://wordpress.org/plugins/users-ultra/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/users-ultra/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/users-ultra/)
 * [Active Topics](https://wordpress.org/support/plugin/users-ultra/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/users-ultra/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/users-ultra/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [Plugins Area](https://wordpress.org/support/users/usersultra/)
 * Last activity: [11 years, 6 months ago](https://wordpress.org/support/topic/fatal-error-facebook-class/#post-5398948)
 * Status: resolved