Fatal error: Uncaught Error: Class "Doctrine\DBAL\ConnectionException" not found in /home/mary2298/public_html/vendor/doctrine/dbal/src/Exception/SavepointsNotSupported.php:9 Stack trace: #0 {main} thrown in /home/mary2298/public_html/vendor/doctrine/dbal/src/Exception/SavepointsNotSupported.php on line 9