Fatal error: Uncaught Error: Interface "ilComponentDefinitionProcessor" not found in /var/www/html/ilias/components/ILIAS/Mail/classes/Setup/class.ilMailTemplateContextDefinitionProcessor.php:21 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Mail/classes/Setup/class.ilMailTemplateContextDefinitionProcessor.php on line 21