Fatal error: Uncaught Error: Class "TYPO3\CMS\Backend\Preview\StandardContentPreviewRenderer" not found in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-form/Classes/Hooks/FormPagePreviewRenderer.php:43 Stack trace: #0 {main} thrown in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-form/Classes/Hooks/FormPagePreviewRenderer.php on line 43