My game has been working fine up until this morning. Now, when I open the app it says "We could not refresh your login with Facebook. Please try to login via that method again". It also says "error code 2 session 6". Everytime I then click to sign in with Facebook it repeats the same message. I checked Facebook, and the app and permissions haven't expired. I would really appreciate some help, as I can't seem to figure it out. While waiting for replies I think I may go re-install the game.