I haven't tried that. What I did do though, is delete a save and it let me start a new character. Then after that I tried saving new saves with existing characters and it let me. As soon as I tried to start a new game again however, the error came back. It will still let me use new save slots with my existing characters though.
Community Manager@W0lfgirl so this may come down to a few more things. PS5 won't let you back up saves to a USB like PS4 did, but you can move them to an external drive.
If you don't have one, you may have to start deleting older saves. Some of the auto saves can be removed, and the manual ones can be kept. It is coming down to save file room on the system or online storage. Some of them may need to go to get rid of the error.
