Fatal error: Uncaught Error: Interface 'League\CommonMark\Extension\ExtensionInterface' not found in /home/jsslnvvr/public_html/vendor/league/commonmark/src/Extension/Highlight/HighlightExtension.php:19 Stack trace: #0 {main} thrown in /home/jsslnvvr/public_html/vendor/league/commonmark/src/Extension/Highlight/HighlightExtension.php on line 19