Fatal error: Uncaught Error: Class "ILIAS\ResourceStorage\Stakeholder\AbstractResourceStakeholder" not found in /var/www/html/ilias/components/ILIAS/Poll/classes/Image/Repository/Stakeholder/Handler.php:26 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Poll/classes/Image/Repository/Stakeholder/Handler.php on line 26