I have a problem bettwen Geographicraft (old Climate Control) with Realistic Terrain Generation and The Betweenlands. The Betweenlands World is a large ocean from bedrock to 120 block height, with dirt clusters or slime islands from tinker. Thanks for help :)

That's a problem on Geographicraft's side, see #388.
If you want to use the BL and have similar features to Geographicraft you can use Biometweaker instead.