So I waited for Barry and got the Pass Number from him, but when I am at the numeric lock on the west hall, it says I don't know the code. Am I bugged?

It would seem so, yes. Luckily that door is not needed, since it's simply a shortcut.

i never use that door , lol

I do... because I'm an item and plants hoarder so it's easier to get everything to a trunk and go back pick up any leftovers... at least with Jill.

Maybe when you got the pass number you didn't turned the page to see the code, and you just pressed action. I'm sure that pass code can be seen again in the file inventory. I doubt that you can break the game with something like this. I beat the game with Jill twice and it always worked for me.

If you're using the Director's Cut background mod, that's the problem.