Fatal error: Uncaught Error: Interface 'League\CommonMark\Extension\TableOfContents\Normalizer\NormalizerStrategyInterface' not found in C:\xampp\htdocs\admin\vendor\league\commonmark\src\Extension\TableOfContents\Normalizer\RelativeNormalizerStrategy.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\league\commonmark\src\Extension\TableOfContents\Normalizer\RelativeNormalizerStrategy.php on line 18