Fatal error: Uncaught Error: Interface "TYPO3\CMS\Install\SystemEnvironment\DatabaseCheck\Platform\PlatformCheckInterface" not found in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-install/Classes/SystemEnvironment/DatabaseCheck/Platform/AbstractPlatform.php:28 Stack trace: #0 {main} thrown in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-install/Classes/SystemEnvironment/DatabaseCheck/Platform/AbstractPlatform.php on line 28