Fatal error: Uncaught Error: Interface "TYPO3\CMS\Frontend\ContentObject\Exception\ExceptionHandlerInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-frontend/Classes/ContentObject/Exception/ProductionExceptionHandler.php:31 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-frontend/Classes/ContentObject/Exception/ProductionExceptionHandler.php on line 31