Fatal error: Uncaught Error: Class "ilException" not found in /var/www/html/ilias/components/ILIAS/Membership/exceptions/class.ilMembershipRegistrationException.php:27 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Membership/exceptions/class.ilMembershipRegistrationException.php on line 27