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EE Stopped Working

Posted: September 30, 2021 at 8:23 am


September 30, 2021 at 8:23 am

Good day,

EE stopped working, can you perhaps assist in identifying the problem? Received this from our hosts:

Error Details
An error of type E_ERROR was caused in line 115 of the file public_html/wp-content/plugins/event-espresso-core-reg1/core/helpers/EEH_Autoloader.helper.php. Error message: Uncaught EE_Error: No Class name was specified while registering an autoloader for the following path: public_html/wp-content/plugins/ee4-events-calendar/data_migration_scripts/3_0_0_stages/viewer.php. in public_html/wp-content/plugins/event-espresso-core-reg1/core/helpers/EEH_Autoloader.helper.php:115
Stack trace:
#0 public_html/wp-content/plugins/ee4-events-calendar/data_migration_scripts/EE_DMS_Calendar_3_0_0.dms.php(19): EEH_Autoloader::register_autoloader(Array)
#1 public_html/wp-content/plugins/event-espresso-core-reg1/core/helpers/EEH_Autoloader.helper.php(89): require_once(‘/home/s0mq4gw13…’)
#2 [internal function]: EEH_Autoloader::espresso_autoloader(‘EE_DMS_Calendar…’)
#3 [internal function]: spl_autoload_call(‘EE_DMS_Calendar…’)
#4 public_html/wp-content/plugins/event-espresso-core-reg1/core/services/loaders/ClassInterfaceCache.php(54): class_exists(‘EE_DMS_Calendar…’)
#5 /home/s0mq4gw13nlq/public


  • Support Staff

September 30, 2021 at 10:54 am

Hi there,

That error is coming from a viewer.php file, which we do not have in Event Espresso.

The first thing I would do is check that path on the server:


Can you see a viewer.php file there? If so, what are the contents of that file?

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