Fatal error: Uncaught Error: Class "ilPlugin" not found in /var/www/html/ilias/components/ILIAS/OrgUnit/classes/Types/class.ilOrgUnitTypeHookPlugin.php:26 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/OrgUnit/classes/Types/class.ilOrgUnitTypeHookPlugin.php on line 26