Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Schema\AbstractSchemaManager' not found in /home/edmedu/www/edmclass.com.bak/edmclass-admin/vendor/doctrine/dbal/src/Schema/MySQLSchemaManager.php:33 Stack trace: #0 {main} thrown in /home/edmedu/www/edmclass.com.bak/edmclass-admin/vendor/doctrine/dbal/src/Schema/MySQLSchemaManager.php on line 33