How to undo a patch? (Dying Light)

Played six months ago in the game. Removed. Decided to come back and then you rolled out a patch that makes zombies more aggressive! More precisely, each scum which got the crowd rushes me and tries to bite. Not to beat ka it needs to do and bite. My F button is simply dead. Kits no fucking poluchaetsya, and if you try it be nice 10 meet the scum who'll jump on you, and you will repeatedly kill your F button in the hope that something change but no. I would not have bombed if not for the fact that they get you in the tackle, jump and bitch the meter after I thought I dodged. Help version pirate, you want something like to revert to not endure this hell.