I made roguelike dungeons spawn rare. Setting them to use the natural spawn makes them use the village spawn algorithm and litterally littered the landscape with them. With the fact that you can get lapis blocks easily in them, they needed to be toned down.
Apparently you turned off the spawning of the dungeons completely, according to the modder :
- If set to false you will have no roguelike dungeons spawning in your world. You will need to manually spawn them in.