Hi
I just had this problem. I cantacted EA but as expected not much help. I have the game working now. All I did was delete the installed game (I have DVD version - Deluxe). I then put the DVD into the PS4. It needed to load some update so I did this and re downloaded the extra deluxe content from the playstation store using my redeem code. After all of this I restarted the game and was able to load my saved games and all is working fine barr some game lag which I believe is a different issue. I hope this helps.
Has anyone found a fix for this yet? I am 70 hours through and tried to play on friday and got the same message. Recently i used a code for some DLC and i think thats what caused the problem. I tried to delete the game and reinstall but it didnt change anything. I even started a new game and then tried to load my other file and still no luck. I also tried to delete the DLC but...no luck. I am so sick of this stuff happening with RPG games. I really want to finish this game but will not be bothered to start again.
