Can't download map

[spoof]

I think this is a server setting or something but whenever i try to join the zm server (new ip one) and it's running a map i don't have it says missing maps (map), disconnecting. I've downloaded maps before from the server but every so often i would get this error. Help? (sorry if this was went over already)

[icebreaker]

tell me the names of the maps and we will know a lot more