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Critical errors occuring regularly

Posted: May 8, 2022 at 12:37 pm


May 8, 2022 at 12:37 pm

I keep getting emails from my wordpress site saying “Your Site is Experiencing a Technical Issue”. The email contains the following:

Error Details
An error of type E_ERROR was caused in line 121 of the file /home/ahvnaorg/ Error message: Uncaught Error: Undefined constant “EE_FRONT_AJAX” in /home/ahvnaorg/
Stack trace:
#0 /home/ahvnaorg/ EED_WP_Users_SPCO::set_hooks_admin()
#1 /home/ahvnaorg/ EE_Config->_initialize_modules()
#2 /home/ahvnaorg/ EE_Config->initialize_shortcodes_and_modules(”)
#3 /home/ahvnaorg/ WP_Hook->apply_filters(NULL, Array)
#4 /home/ahvnaorg/ WP_Hook->do_action(Array)
#5 /home/ahvnaorg/ do_action(‘AHEE__EE_System…’)
#6 /home/ahvnaorg/ EE_System->core_loaded_and_ready(”)
#7 /home/ahvnaorg/ WP_Hook->apply_filters(NULL, Array)
#8 /home/ahvnaorg/ WP_Hook->do_action(Array)
#9 /home/ahvnaorg/ do_action(‘init’)
#10 /home/ahvnaorg/ require_once(‘/home/ahvnaorg/…’)
#11 /home/ahvnaorg/ require_once(‘/home/ahvnaorg/…’)
#12 /home/ahvnaorg/ require_once(‘/home/ahvnaorg/…’)
#13 {main}

Can you tell me why this occurs and how I can fix. I have deactivated the vent Espresso – WP Users (EE4.6+) plugin to stop the errors.
Is there a conflict?


  • Support Staff

May 9, 2022 at 5:35 am

Hi there,

That error means your server is running PHP8, which Event Espresso is currently not fully compatible with.

I’ve just pushed an update for the WP User Integration add-on (v2.0.18) to fix that specific error, please update to the latest version.

If you activate the add-on then go to Event Espresso -> General Settings.

Make no changes and just hit save to force an update check and the update should show in your Dashboard -> Plugins menu.

Update to the latest version and the above should stop.


May 9, 2022 at 11:46 am

Thanks Tony

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