Fatal error: Uncaught Error: Interface "ilBiblFieldFilterFactoryInterface" not found in /var/www/html/ilias/components/ILIAS/Bibliographic/classes/FieldFilter/class.ilBiblFieldFilterFactory.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Bibliographic/classes/FieldFilter/class.ilBiblFieldFilterFactory.php on line 24