We had some server issues with our host last night. Got back up this morning, and a lot of my Android Tapatalk users report getting a "This community is currently not available on Tapatalk. (Error 404)"
Strangely, it works FINE on iPad and a few older Android phones like the Droid RAZR.
I'm honestly out of ideas. Our host seems to be getting slammed by tickets as they've actually disabled the ticketing system and I can't get an answer out of them.