Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Arrayable" not found in /home/sustaina/public_html/vendor/laravel/framework/src/Illuminate/Testing/Fluent/AssertableJson.php:13 Stack trace: #0 {main} thrown in /home/sustaina/public_html/vendor/laravel/framework/src/Illuminate/Testing/Fluent/AssertableJson.php on line 13