Fatal error: Uncaught Error: Class "Illuminate\Foundation\Http\FormRequest" not found in C:\laragon\www\Clinic\app\Modules\Billing\Http\Requests\Api\StartInvoiceRequest.php:15 Stack trace: #0 {main} thrown in C:\laragon\www\Clinic\app\Modules\Billing\Http\Requests\Api\StartInvoiceRequest.php on line 15