OK, now it's working! That was weird.
Discussion
Nope, sorry, it's broken again. When it worked there it showed the old page, before you recently changed it.
Try logging out and back in. Might be on an older version.
Also hard refresh
Signed out, cleared browser cache, restarted device, still getting the notice on both Firefox and Chrome on Android. All other pages on the site load fine, either by clicking hyperlinks or putting the URL in the address bar.
Only /studio page not loading across all browsers. It tries to load, gives a very brief flash of the page, then goes straight to the "there was a problem" message.