If your site shows a 'Site Currently Unavailable' message, don’t panic. Start...

https://wiki-legion.win/index.php/Site_Currently_Unavailable_%E2%80%93_Can_a_CDN_Cause_a_401_or_403_Error%3F

If your site shows a 'Site Currently Unavailable' message, don’t panic. Start by checking your DNS settings to ensure they point correctly to your server. Next, review file permissions to rule out 403 errors