Fatal error: Uncaught Error: Class 'League\Fractal\Resource\ResourceAbstract' not found in /opt/lampp/htdocs/us/vendor/league/fractal/src/Resource/Primitive.php:20 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/us/vendor/league/fractal/src/Resource/Primitive.php on line 20