Fatal error: Uncaught Error: Interface "League\CommonMark\Delimiter\DelimiterInterface" not found in /opt/lampp/htdocs/forum/flarum/vendor/league/commonmark/src/Delimiter/Delimiter.php:21 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/league/commonmark/src/Delimiter/Delimiter.php on line 21