Fatal error: Uncaught Error: Class "ILIAS\ResourceStorage\Stakeholder\AbstractResourceStakeholder" not found in /var/www/html/ilias/components/ILIAS/Skill/Profile/class.ilSkillProfileStorageStakeHolder.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Skill/Profile/class.ilSkillProfileStorageStakeHolder.php on line 28