Fatal error: Uncaught Error: Interface 'League\CommonMark\Normalizer\TextNormalizerInterface' not found in C:\xampp\htdocs\admin\vendor\league\commonmark\src\Normalizer\SlugNormalizer.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\league\commonmark\src\Normalizer\SlugNormalizer.php on line 19