so uh i broke the lock during act one after the hammer and the door didnt open did i break it?
i threw a bag at the lock and it broke but the door wont open

It worked! I uninstalled every custom storie i had except for nullus deus, and i was able to enter act 3 and finish the whole storie, thank you for the help!

this is the first time i see such issue and im afraid i cant help but suggest moving conflicting custom stories out of the respective folder, so only Nullus Deus remains and then try again :o

There is a bug right before entering "ACT 3", when i use the key for the Archives the game loads the level like usual but when i enter the level the game spawns me in a map with "Amnesia a Machine for Pigs" assets, there are houses and big doors, wich one of them has a blue light coming out of it, i watched a video of someone else playing this CS but he just goes straight ahead to ACT 3 instead of what happened to me.

This one was pretty good