Fatal error: Uncaught Error: Interface "League\Flysystem\FilesystemAdapter" not found in /var/www/html/dev.hallescherfc.de/vendor/league/flysystem-memory/InMemoryFilesystemAdapter.php:23 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/league/flysystem-memory/InMemoryFilesystemAdapter.php on line 23