Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Connection' not found in /home/app/htdocs/message_gateway/vendor/doctrine/dbal/lib/Doctrine/DBAL/Sharding/PoolingShardConnection.php:54 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/doctrine/dbal/lib/Doctrine/DBAL/Sharding/PoolingShardConnection.php on line 54