Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Database\Eloquent\Builder' not found in /home/biigcom/public_html/backend/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Relations/Relation.php:16 Stack trace: #0 {main} thrown in /home/biigcom/public_html/backend/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Relations/Relation.php on line 16