Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Driver\PDOConnection' not found in /home/app/htdocs/message_gateway/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Connection.php:7 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Connection.php on line 7