Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Schema\AbstractSchemaManager' not found in /home/appoint/public_html/booking/vendor/doctrine/dbal/src/Schema/DB2SchemaManager.php:24 Stack trace: #0 {main} thrown in /home/appoint/public_html/booking/vendor/doctrine/dbal/src/Schema/DB2SchemaManager.php on line 24