Fatal error: Uncaught Error: Interface 'Gedmo\Sluggable\Handler\SlugHandlerWithUniqueCallbackInterface' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Libraries/gedmo/doctrine-extensions/src/Sluggable/Handler/TreeSlugHandler.php:29 Stack trace: #0 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Libraries/gedmo/doctrine-extensions/src/Sluggable/Handler/TreeSlugHandler.php on line 29