I have a problem with my WordPress site, it is working well until today.
The problem is when I type my domain name it is redirecting to wp-admin/setup-config.php file. I have no idea why this is happening. The site works fine before.
On domain/wp-admin/setup-config.php page shows a message
"This page isn’t working www.domain.com is currently unable to handle this request. HTTP ERROR 500"