I came across this issue today after buying the game again on sale. I had downloaded the entire game with all the DLC or so I thought. I still hadn't downloaded the Jaws of Hakkon DLC which seemed odd but still, I went and downloaded it again last night. Woke up today to have my game not load, just a black screen with the symbol blinking. This is how I fixed mine with no deleting of the game.
- I made sure the game was closed and went to the PlayStation home screen where all my games are located.
- Then on Dagon Age, I went down past Overview, Trending, and Friends to the PlayStation Store tab.
- On this tab, it told me my add-ons and content I could still purchase. Knowing that Jaws of Hakkon was downloaded last night I presumed this was the issue.
- Next to the Jaws of Harkkon tab under my add-ons, there is a download arrow I pressed that and got a notification stating that it has been added to my downloads... again?
- After the download, I opened the game to see it was working right again with no saves or anything having to be deleted.
I hope this helps.