[X28.0.2] 059's client

Hey, always wondered what /fake and /copy do- can someone clarify how it works & what its use is?

Hey, i have a problem with this client - whenever i enter vault its floor is blue and i can't move, my fame is showing 0, same as gold which is not true and i also can't go back to nexus because if i do it's showing error. This only happens if i enter vault.
Any ideas?
@edIT
Thanks ShadowX13, turning maphack off worked!