Title: getting errors on site when plugin activated
Last modified: May 13, 2019

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# getting errors on site when plugin activated

 *  [mashupmom](https://wordpress.org/support/users/mashupmom/)
 * (@mashupmom)
 * [7 years ago](https://wordpress.org/support/topic/getting-errors-on-site-when-plugin-activated/)
 * I’ve just started using Create, and am getting the following error across the
   top of my site:
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, class‘
   WPSEO_Twitter’ not found in H:\root\home\shuri17-001\www\almostallaldi\wp-includes\
   class-wp-hook.php on line 286
 * When I deactivate the plugin, the error disappears. Any ideas?
 * Thanks!
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fgetting-errors-on-site-when-plugin-activated%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  Thread Starter [mashupmom](https://wordpress.org/support/users/mashupmom/)
 * (@mashupmom)
 * [7 years ago](https://wordpress.org/support/topic/getting-errors-on-site-when-plugin-activated/#post-11526545)
 * Update — it then started throwing fatal errors, so I have deactivated the plugin
   for now.
 *  Thread Starter [mashupmom](https://wordpress.org/support/users/mashupmom/)
 * (@mashupmom)
 * [7 years ago](https://wordpress.org/support/topic/getting-errors-on-site-when-plugin-activated/#post-11581710)
 * I reactivated the plugin — it worked for a bit, and now the backend is throwing:
 * Warning: include(): Filename cannot be empty in H:\root\home\shuri17-001\www\
   almostallaldi\wp-content\plugins\mediavine-create\vendor\composer\ClassLoader.
   php on line 444
 * Warning: require_once(/class-images-api.php): failed to open stream: No such 
   file or directory in on line 478
 * Fatal error: require_once(): Failed opening required ‘/class-images-api.php’ (
   include_path=’.;C:\php\pear’) in on line 478
 *  Plugin Author [mediavine](https://wordpress.org/support/users/mediavine/)
 * (@mediavine)
 * [7 years ago](https://wordpress.org/support/topic/getting-errors-on-site-when-plugin-activated/#post-11584143)
 * Hi,
 * Sorry for the delay.
 * We’re pretty sure something is wrong at the server level, could you send an email
   to [create@mediavine.com](https://wordpress.org/support/topic/getting-errors-on-site-when-plugin-activated/create@mediavine.com?output_format=md)
   so we can try to gather more information privately?
 * Jordan Cauley

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

The topic ‘getting errors on site when plugin activated’ is closed to new replies.

 * ![](https://ps.w.org/mediavine-create/assets/icon.svg?rev=3387082)
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 * [Support Threads](https://wordpress.org/support/plugin/mediavine-create/)
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## Tags

 * [error messages](https://wordpress.org/support/topic-tag/error-messages/)
 * [warning](https://wordpress.org/support/topic-tag/warning/)

 * 3 replies
 * 2 participants
 * Last reply from: [mediavine](https://wordpress.org/support/users/mediavine/)
 * Last activity: [7 years ago](https://wordpress.org/support/topic/getting-errors-on-site-when-plugin-activated/#post-11584143)
 * Status: not resolved