Fatal error: Uncaught Error: Class 'League\Fractal\TransformerAbstract' not found in /home/app/htdocs/lidia/app/Ninja/Transformers/EntityTransformer.php:9 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/app/Ninja/Transformers/EntityTransformer.php on line 9