Portal SDK no game mode selected

Hi, 
i used an existing map and changed it a bit. 
Inside of Godot, i was not able to test it, the play screen stays gray. 

When i try to upload it to Portal, it tells me, that i did not select a game mode?!
I placed 4 Conquest points on the map and added from "Common-Conquest-CapturePoint.gd" to all these points. 

What am i missing?