Error code 12

Im having issues with your game. I have only been able to successfully play it once. That is when the game was first released. Ever since then, I could not get past the checking download screen. Once the season 3 update came out, i was able to at least get into the game. The problem is that I get error code 12 and it tells me that I cannot save/load my data. I paid for the season 1 pack and i cant even use them. This only happens on my profile. Is there anyway you guys can fix this for me so i can enjoy what i paid for?