Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Mail\Factory" not found in D:\xampp\htdocs\dropifypro\vendor\laravel\framework\src\Illuminate\Mail\MailManager.php:31 Stack trace: #0 {main} thrown in D:\xampp\htdocs\dropifypro\vendor\laravel\framework\src\Illuminate\Mail\MailManager.php on line 31