Fatal error: Uncaught Error: Interface "ilPluginStateDB" not found in /var/www/html/ilias/components/ILIAS/Component/classes/class.ilPluginStateDBOverIlDBInterface.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Component/classes/class.ilPluginStateDBOverIlDBInterface.php on line 28