Fatal error: Uncaught Error: Interface "TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3fluid/fluid/src/Core/ViewHelper/AbstractViewHelper.php:23 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3fluid/fluid/src/Core/ViewHelper/AbstractViewHelper.php on line 23