Fatal error: Uncaught Error: Interface "League\CommonMark\Normalizer\UniqueSlugNormalizerInterface" not found in D:\xampp\htdocs\dropifypro\vendor\league\commonmark\src\Normalizer\UniqueSlugNormalizer.php:17 Stack trace: #0 {main} thrown in D:\xampp\htdocs\dropifypro\vendor\league\commonmark\src\Normalizer\UniqueSlugNormalizer.php on line 17