Help! 477 Error “This Site is Offline”

I’m launching a new service today and logged in to discover my website is “offline” I finished building my landing page yesterday and when I went to bed last night, everything was fine. This morning I check on things and I have a 477 “this site is offline” error. I can’t access the site logged in or out. /wp-admin gives me the same error, so I can’t even try debugging or deactivating plugins. There doesn’t seem to be any hosting/domain issues and IsMySiteDown says everything is fine. All of my plugins and wordpress were up to date (as of yesterday).

I’ve emailed the guy who built my site for me to see if he can see anything on his end, but in the mean time, I’m hoping I can figure something out (or at least learn something!).

The page I need help with: [log in to see the link]

 

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