Some problems may come from corrupted data.

Please follow the following steps below to reinstall the game:
  1. Exit the game;
  2. From your Android home screen, select Settings > Applications > Manage applications;
  3. Select the game;
  4. On the app information screen, select Clear cache;
  5. On the same screen, select *Force Close*;
  6. Uninstall the game;
  7. Restart your device;
  8. Reinstall the game.