Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\AbstractSchemaManager" not found in /home/alkhalaffamily/public_html/teachme/vendor/doctrine/dbal/src/Schema/OracleSchemaManager.php:25 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/teachme/vendor/doctrine/dbal/src/Schema/OracleSchemaManager.php on line 25