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

https://deansinspiringperspective.hexaforgey.com/posts/site-currently-unavailable-my-api-requests-started-failing

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