Fatal error: Uncaught Error: Interface "TYPO3\CMS\Reactions\Reaction\ReactionInterface" not found in /var/www/html/dev.hallescherfc.de/packages/hfcimport/Classes/Reaction/ClearCacheReaction.php:20 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/packages/hfcimport/Classes/Reaction/ClearCacheReaction.php on line 20