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Fatal Error in 4.9.36p

Posted: April 10, 2019 at 3:23 pm

Weldon Dodd

April 10, 2019 at 3:23 pm

This error showed up recently after updating to WordPress 5.1.1. I’m not sure exactly when it started because we haven’t added an event for a few weeks. Sometime between early March and now.

Any ideas?

Fatal error: Uncaught Error: Class name must be a valid object or a string in /nas/content/live/rewindtech/wp-content/plugins/event-espresso-core-reg/core/EE_Config.core.php:435 Stack trace: #0 /nas/content/live/rewindtech/wp-content/plugins/event-espresso-core-reg/core/EE_Config.core.php(462): EE_Config->_reset_espresso_addon_config() #1 /nas/content/live/rewindtech/wp-content/plugins/event-espresso-core-reg/core/admin/PostShortcodeTracking.php(357): EE_Config->update_espresso_config() #2 /nas/content/live/rewindtech/wp-content/plugins/event-espresso-core-reg/core/admin/PostShortcodeTracking.php(146): EventEspresso\core\admin\PostShortcodeTracking::update_post_shortcodes(‘posts’) #3 [internal function]: EventEspresso\core\admin\PostShortcodeTracking::parse_post_content_on_save(1252, Object(WP_Post)) #4 /nas/content/live/rewindtech/wp-includes/class-wp-hook.php(288): call_user_func_array(Array, Array) #5 /nas/content/live/rewindtech/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #6 /nas/content/li in /nas/content/live/rewindtech/wp-content/plugins/event-espresso-core-reg/core/EE_Config.core.php on line 435

Weldon Dodd

April 10, 2019 at 3:28 pm

The error shows up when trying to create a new event.

Sorry I put this in the wrong subforum.


  • Support Staff

April 10, 2019 at 3:51 pm


This just means you need to update your site to have the current version of Event Espresso 4. Version 4.9.36.p isn’t compatible with newer versions of PHP and newer versions of WordPress. Can you update to Event Espresso 4.9.79?

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