(PC) When this happens i was told to roll dodge, and this does indeed fix it for me in my experience. Unsure if this will work for you, but i hope it does!
As of this morning, on my and others' characters, all skills/weapons lock up and we cannot fire anything. Weapons stop working, skills cannot be cast. This is happening on the NA and EU PS5 servers, solo play, with others in the area, and group play. Trying to run a dungeon or delve has become impossible. All you can do is either run or try to get far enough away to log out and log back in.
Please fix.