CiviEvent: Could not find valid value for id
Overview
Event Participant registration stopped working. After completing no matter which registration form and pressing the "register"-button, an error shows up.
Reproduction steps
- Chose an event, click on "register"
- Fill out the registration form and click on the "register"-button
- Results in an error 500 / Could not find valid value for id.
Current behaviour
Registration doesn't work and results in the following error:
CRM_Core_Exception: Could not find valid value for id. in [DOMAIN]/administrator/components/com_civicrm/civicrm/CRM/Event/StateMachine/Registration.php on line 27
Expected behaviour
Registration should complete and the respective confirmation should be displaying.
Environment information
Joomla 3.10.11, PHP 7.4.33, CiviCRM 5.62.1
This is probably related to: https://civicrm.stackexchange.com/questions/44719/could-not-find-valid-value-for-id https://civicrm.stackexchange.com/questions/41578/could-not-find-valid-value-for-id-after-event-registration-on-wordpress-5-9-1 and most probably to wordpress#140 (closed)