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

https://deansinspiringperspective.hexaforgey.com/posts/site-currently-unavailable-after-installing-an-ssl-certificate-what-to-do-next

Seeing a 'Site Currently Unavailable' message can be frustrating, but you can fix it. First, check if your DNS settings are correct or if your site’s permissions block access