If your site shows a "Site Currently Unavailable" message, don’t worry. Start...

https://angelossplendidperspectives.lowescouponn.com/site-currently-unavailable-after-changing-nameservers-what-you-need-to-know

If your site shows a "Site Currently Unavailable" message, don’t worry. Start by checking your DNS settings to ensure your domain points correctly. Also, review your file permissions to avoid 403 errors