Fatal error: Uncaught Error: Class "League\Fractal\Serializer\SerializerAbstract" not found in /home/alkhalaffamily/public_html/past_videos/vendor/league/fractal/src/Serializer/ArraySerializer.php:18 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/past_videos/vendor/league/fractal/src/Serializer/ArraySerializer.php on line 18