AC Valhalla?

Suddenly I can no longer save, no matter whether in the menu or fast storage, and I can no longer travel fast (not only applies to restricted areas but also to any place in the wilderness) and whenever I go over a screenshot, there's an online service error, yes according to the Playstation I'm connected, it started in the middle of the game and did not disappear after a restart

Did you use the current patch?

Yes