Fatal error: Uncaught Error: Interface 'Psr\Http\Message\StreamInterface' not found in /mnt/volume_lon1_01/backend/admin/vendor/symfony/psr-http-message-bridge/Tests/Fixtures/Stream.php:19 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/symfony/psr-http-message-bridge/Tests/Fixtures/Stream.php on line 19