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