Fatal error: Uncaught Error: Class "League\CommonMark\Inline\Element\AbstractStringContainer" not found in D:\Apache24\www\pda\vendor\league\commonmark\src\Extension\SmartPunct\Quote.php:19 Stack trace: #0 {main} thrown in D:\Apache24\www\pda\vendor\league\commonmark\src\Extension\SmartPunct\Quote.php on line 19