Fatal error: Uncaught Error: Interface "Symfony\Component\Mime\MimeTypeGuesserInterface" not found in /opt/lampp/htdocs/forum/flarum/vendor/symfony/mime/FileBinaryMimeTypeGuesser.php:22 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/symfony/mime/FileBinaryMimeTypeGuesser.php on line 22