Fatal error: Uncaught Error: Class "Illuminate\Notifications\Notification" not found in D:\xampp\htdocs\dropifypro\vendor\laravel\cashier\src\Notifications\ConfirmPayment.php:11 Stack trace: #0 {main} thrown in D:\xampp\htdocs\dropifypro\vendor\laravel\cashier\src\Notifications\ConfirmPayment.php on line 11