Fatal error: Uncaught Error: Interface 'Doctrine\DBAL\Driver\Connection' not found in /mnt/volume_lon1_01/backend/admin/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/MysqliConnection.php:30 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/MysqliConnection.php on line 30