Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Event\TransactionEventArgs' not found in /opt/lampp/htdocs/Insurance-Integration/vendor/doctrine/dbal/src/Event/TransactionRollBackEventArgs.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/Insurance-Integration/vendor/doctrine/dbal/src/Event/TransactionRollBackEventArgs.php on line 7