Fatal error: Uncaught Error: Class "YoutubeDl\Entity\AbstractEntity" not found in C:\xampp\htdocs\mtamp3\vendor\norkunas\youtube-dl-php\src\Entity\Category.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\mtamp3\vendor\norkunas\youtube-dl-php\src\Entity\Category.php on line 9