Change Default Map

I have a custom server that, upon restarts, runs the default map cycle and I have to manually change the map from webadmin each time. In KFGame, I deleted the Default map as well as all the stock maps and in their place I only have custom maps. As for the map cycle, they only have custom maps but the server still goes to Biotics Lab whenever it starts up. How do I change the default map to say a custom map?

Extra question: is it normal for servers to not have mapvote without a Gametype?

Change Default Map