There was PSN maintenance a day or so ago, and my PS4 was online during it at the time because I activated it as my primary and was active before it began, so I was able to stay on during it. Which I've done before on my PS3 as well when it was on there before I upgraded, but now I'm freaking out because the game is saying my character config data is corrupted, but I have no idea as to why.

It was working perfectly fine yesterday when I was online and I did two treasure maps, spoke with retainers, then got off. Nothing more. Why am I seeing this message? Do I really need to delete my character?!