I ran into this issue today on ps3 only turns out you have to register this game like a million times. I've been playing the game without issue since October and just started encountering errors today. I can't speak for ps4 users but if you are having issues on ps3 go to http://member.square-enix.com/na and log in. it may ask you to create a new account. click on the drop down by your account name and select my profile from here you can register the game yet again using the red card included in the package. Hope this helps at least some people play again.