Fatal error: Uncaught Error: Interface 'League\CommonMark\Normalizer\TextNormalizerInterface' not found in D:\xampp\htdocs\psp\backend\vendor\league\commonmark\src\Normalizer\UniqueSlugNormalizerInterface.php:16 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\league\commonmark\src\Normalizer\UniqueSlugNormalizerInterface.php on line 16