Fatal error: Uncaught Error: Class "TYPO3\CMS\Frontend\ContentObject\AbstractContentObject" not found in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-frontend/Classes/ContentObject/TextContentObject.php:21 Stack trace: #0 {main} thrown in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-frontend/Classes/ContentObject/TextContentObject.php on line 21