Fatal error: Uncaught Error: Interface 'League\CommonMark\Reference\ReferenceMapInterface' not found in /home/kingelearn/public_html/vendor/league/commonmark/src/Reference/ReferenceMap.php:22
Stack trace:
#0 {main}
thrown in /home/kingelearn/public_html/vendor/league/commonmark/src/Reference/ReferenceMap.php on line 22