Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\TableDiff" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Database/Schema/TableDiff.php:26 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Database/Schema/TableDiff.php on line 26