This happens if there's a corrupted file while downloading the content. If you encounter messages that are difficult to understand, we suggest that you refresh the game content by choosing ""Restore"" then tapping ""Redownload"" on the title screen.

Make sure your account is linked to Facebook in order to secure your progress. Should you be using an iOS device, kindly turn off your iCloud feature first, as it automatically synchronizes data from your device to the iCloud.