Fatal error: Uncaught Error: Class 'League\Fractal\Resource\ResourceAbstract' not found in /var/www/html/navirre.com/htdocs/concrete/vendor/league/fractal/src/Resource/Primitive.php:20 Stack trace: #0 {main} thrown in /var/www/html/navirre.com/htdocs/concrete/vendor/league/fractal/src/Resource/Primitive.php on line 20