My server wont accept my custom map!

[PyroQ]

I made a few maps and the put them on a LAN server. 4/6 works just fine but when I try to change to two of them the server tells me that: "This map does not satisfy some quality requisites to be played in Multip player mode" or something like that. Why is that?
And when the Map rotation gets to the map it simply skipps it for the next one...
What can I do to solve this?