First off you didn't say what kind of device you are playing on.. so that makes rendering you assistance a bit problematic.. but go into the game & from the main menu hit 'settings' then hit 'about' & look to see what version you are running. It should be 4.4.49 If it isn't then you need to upgrade, and if you are unable to do so perhaps you can delete the app & reinstall (though this should be your LAST option you attempt!)