I've actually never seen that error before. How'd you get it to pop up? Which code were you trying to enter?
There should only be three passcodes you can access: A, A+1, and B. Technically there's a fourth but it's not in the game to my knowledge.
Can anyone help with:
Where can I get code B?
How to enter in the man's toilet, under the Hakasi's Lab?
How to enter in the danger room, near Hibachi 's Lab?
What to do with dog suit?
What to do with Hibachi (step by step, please, because I try many times any methods)
And general: how or what to do with sewer? People says about kitty goo, i think, it in sewer, but how explore =\
I have 86%.