Board Thread:Help and Questions/@comment-112.215.36.144-20160708111641/@comment-26005122-20160713195634

Hmm... From what I've been reading, it's not entirely known what causes it. There are several workaround suggestions. The main suggestion is to launch the game from WiFi, and then switch back to 4G cell data. Another suggestion to try to delete the app  and the app data in the Android settings, both from LINE and Tsum Tsum, and reinstalling and logging back in to both.