Fatal error: Uncaught Error: Interface 'League\CommonMark\Util\ConfigurationAwareInterface' not found in /home/kingelearn/public_html/vendor/league/commonmark/src/Extension/HeadingPermalink/HeadingPermalinkProcessor.php:30 Stack trace: #0 {main} thrown in /home/kingelearn/public_html/vendor/league/commonmark/src/Extension/HeadingPermalink/HeadingPermalinkProcessor.php on line 30