Seeing a "Site Currently Unavailable" message can be frustrating, but you can...

https://andressuniquechat.cloudhinter.com/posts/site-currently-unavailable-after-uploading-a-new-theme-what-to-do-next

Seeing a "Site Currently Unavailable" message can be frustrating, but you can fix it. Start by checking your site’s DNS settings to ensure they point correctly to your server. If that looks good, verify your file permissions aren’t blocking access