Fatal error: Uncaught Error: Interface "Doctrine\DBAL\Driver" not found in /opt/lampp/htdocs/forum/flarum/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractDB2Driver.php:15 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractDB2Driver.php on line 15