Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Exception\ConnectionException' not found in /opt/lampp/htdocs/Insurance-Integration-prod/vendor/doctrine/dbal/src/Exception/ConnectionLost.php:8 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/Insurance-Integration-prod/vendor/doctrine/dbal/src/Exception/ConnectionLost.php on line 8