Fatal error: Uncaught Error: Class "League\CommonMark\Node\Block\AbstractBlock" not found in D:\xampp\htdocs\dropifypro\vendor\league\commonmark\src\Extension\TableOfContents\Node\TableOfContentsPlaceholder.php:18 Stack trace: #0 {main} thrown in D:\xampp\htdocs\dropifypro\vendor\league\commonmark\src\Extension\TableOfContents\Node\TableOfContentsPlaceholder.php on line 18