Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Arrayable" not found in /home/rwebserver/public_html/quanta/vendor/laravel/cashier/src/Coupon.php:10 Stack trace: #0 {main} thrown in /home/rwebserver/public_html/quanta/vendor/laravel/cashier/src/Coupon.php on line 10