HaloMods "Classic" Read-only Archive

I downloaded the Zanzibar map for HaloCE and H2 Zanzibar,whenever I try to join the "Zanzibar" map however it says I cannot join the server,but when I try the H2 Zanzibar it shows no problem,anyone know how to fix this?

try to download it again and if that doesn't work then ask someone that has the map to tell u what could be wrong