Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\Visitor\AbstractVisitor" not found in /home/kardi/public_html/vendor2523/doctrine/dbal/src/Schema/Visitor/DropSchemaSqlCollector.php:18 Stack trace: #0 {main} thrown in /home/kardi/public_html/vendor2523/doctrine/dbal/src/Schema/Visitor/DropSchemaSqlCollector.php on line 18