Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Support\Arrayable' not found in E:\xampp\htdocs\key1\vendor\laravel\framework\src\Illuminate\Support\Collection.php:19 Stack trace: #0 {main} thrown in E:\xampp\htdocs\key1\vendor\laravel\framework\src\Illuminate\Support\Collection.php on line 19