Crash after update this morning

Game mode: Singleplayer
Problem: Crash
Region: [Here]

I move my character just a few feet jumped off a rock and game crashed to an error box. Error message was something about a corrupt file, and use repair function. Happened 2 times, same exact spot. (3 times now, different spot 3rd time, maybe 30 seconds in).

Error message:
“pak file corrupt or tampered with. Please use steam option ‘Verify integrity of game files’ to repair game install. Exiting…”

I am getting the same error after update… My game keeps crashing during multiplayer on official server. This is going on a few times during game play. it is quite annoying because I am losing gear,