Topic: Last of us 2 saving issue.

I've lost about five hours worth of game play from the last of us 2. At the start of the games screen I keep getting this message:

"Can not save. To save your progress in the current application, you must delete another application or video clip that is larger than 0.00mb on the system storage. If you delete multiply applications or video clips, the total size you have to delete might be larger than 0.00mb"

I've tried uninstalling the game and reinstalling it. I've deleted saved data. Theres more than enough memory on my ps4. Can someone please help?!