mistakenly I added amt instead of smtp on mail settings and saved, the forum is not working now.
[error] 17444#17444: *1 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught InvalidArgumentException: Driver [amtp] not supported. in /var/www/html/forum/vendor/illuminate/support/Manager.php:90
Stack trace:
#0 /var/www/html/forum/vendor/illuminate/support/Manager.php(63): Illuminate\Support\Manager->createDriver('amtp')
#1 /var/www/html/forum/vendor/illuminate/mail/MailServiceProvider.php(95): Illuminate\Support\Manager->driver()
#2 /var/www/html/forum/vendor/illuminate/container/Container.php(279): Illuminate\Mail\MailServiceProvider->Illuminate\Mail\{closure}(Object(Flarum\Foundation\Application))
#3 /var/www/html/forum/vendor/illuminate/container/Container.php(738): Illuminate\Container\Container->Illuminate\Container\{closure}(Object(Flarum\Foundation\Application), Array)
#4 /var/www/html/forum/vendor/illuminate/container/Container.php(631): Illuminate\Container\Container->build(Object(Closure), Array)
