Minecraft version: 1.18.1
Forge version: 39.0.88
Quark version: 3.1-340
Autoreg Lib version: 1.7-53
TerraBlender version: 1.1.0.77

Reproduction steps:

• With no saves
• Disable the world section in Quark config
• Restart Minecraft
• Hit Singleplayer button on main menu

Crash log: https://pastebin.com/7vpFDdW9
Error message:

The game crashed whilst mouseclicked event handler
Error: java.lang.RuntimeException: Biome indices have been registered but haven't been utilised: [1]. Either utilise the uniqueness assigned to your biome provider or set your provider's weight to 0.
Exit Code: -1

Fixed in master