Fatal error: Uncaught Error: Class 'League\CommonMark\Inline\Element\AbstractInline' not found in C:\xampp\htdocs\admin\vendor\league\commonmark\src\Extension\Strikethrough\Strikethrough.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\league\commonmark\src\Extension\Strikethrough\Strikethrough.php on line 16