Fatal error: Uncaught Error: Interface "TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperInterface" not found in /home/rcmch/test.m-s-i.ch/vendor/typo3fluid/fluid/src/Core/ViewHelper/AbstractViewHelper.php:22 Stack trace: #0 {main} thrown in /home/rcmch/test.m-s-i.ch/vendor/typo3fluid/fluid/src/Core/ViewHelper/AbstractViewHelper.php on line 22