Fatal error: Uncaught Error: Class "League\CommonMark\Node\Block\AbstractBlock" not found in /var/www/html/app/vendor/league/commonmark/src/Extension/CommonMark/Node/Block/ThematicBreak.php:18 Stack trace: #0 {main} thrown in /var/www/html/app/vendor/league/commonmark/src/Extension/CommonMark/Node/Block/ThematicBreak.php on line 18