Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Arrayable" not found in /home/sirajgan/public_html/vendor/olimortimer/laravelshoppingcart/src/CartItem.php:11 Stack trace: #0 {main} thrown in /home/sirajgan/public_html/vendor/olimortimer/laravelshoppingcart/src/CartItem.php on line 11