Thread:Su712/@comment-27902258-20181105191330/@comment-25669516-20181106081941

Oh, hey Shailesh! Nice to hear from you :)

Yep, Helium Backup doesn't work but you don't really need it if you were logged into the game with your Google account since the data is stored on Nekki's server.

As for the error you are getting, sometimes connection issues are just due to server maintenance. If you're still getting this error after 12 hours then try to switch from wifi to mobile data or vice versa and try to open the game. If that's something you cannot do then your best bet would be to re-install the game since you've already tried cache clearing. Do so only if you were connected to Google in-game however!