Board Thread:Questions and Answers/@comment-220.255.2.122-20141027121259/@comment-24956068-20141105171302

Ah, thanks a lot for your explanation. From here, I might also think it is an error entirely from the game's side. Here is some things you might try before contacting  the Customer Support.

1. Uninstalling and reinstalling the application.

2. Clearing the app data routinely to save memory, speed up your phone, and consistently making your phone better over time. It is can be manually cleared on Settings >¤Application Manager, but clearing cache one by one is very time consuming. Otherwise, you can try these tips: http://blog.laptopmag.com/speed-up-android-phone

If you already do both and still got the same error, the last thing to do is to contact the Customer Support. You need to open the app, go to the Settings (gear icon below the leaderboard) then tap Customer Support. Unfortunately Wiki is not affiliated with Devsisters nor Line, so everything in the Customer Support is a totally different person in charge. (If they found out they will be investigating your issue, the bad thing is you need to wait for the app to update on Google Play Store.)