Fatal error: Uncaught Error: Interface "ILIAS\Skill\GapAnalysisSkill" not found in /var/www/html/ilias/components/ILIAS/Skill/Profile/class.SkillProfileLevel.php:29 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Skill/Profile/class.SkillProfileLevel.php on line 29