Anyone using an older version might be causing one of the server files to get deleted. When this happens, nobody can log in until I reset the file. This happened again recently and I could tell it was done by an older version of the app. In the latest version, only an administrator should be able to delete the file. If this keeps happenng, I will have to force everyone to upgrade or not be able to play.

On Apple devices, the app lower left corner will still say it is still 9.7.6, but it is really 9.7.7 (as it says when you are downloading on the App Store). I will fix in the next update.