Fatal error: Uncaught Error: Interface "League\CommonMark\Node\StringContainerInterface" not found in /home/custom/public_html/katiekarr/vendor/league/commonmark/src/Node/RawMarkupContainerInterface.php:19 Stack trace: #0 {main} thrown in /home/custom/public_html/katiekarr/vendor/league/commonmark/src/Node/RawMarkupContainerInterface.php on line 19