Fatal error: Uncaught Error: Interface "Sabberworm\CSS\Comment\Commentable" not found in C:\xampp\htdocs\vendor\sabberworm\php-css-parser\src\CSSList\CSSList.php:35 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\sabberworm\php-css-parser\src\CSSList\CSSList.php on line 35