Fatal error: Uncaught Error: Class "Illuminate\Notifications\Messages\SimpleMessage" not found in /var/www/html/app/vendor/laravel/framework/src/Illuminate/Notifications/Messages/MailMessage.php:13
Stack trace:
#0 {main}
thrown in /var/www/html/app/vendor/laravel/framework/src/Illuminate/Notifications/Messages/MailMessage.php on line 13