Fatal error: Uncaught Error: Class "TYPO3\CMS\Core\Http\ImmediateResponseException" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Http/PropagateResponseException.php:47 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Http/PropagateResponseException.php on line 47