Fatal error while generating the world.

[T]

Plugin version: 7.2.28

Spigot username: Letaforia

Issue: The crash report says to contact you. I made small changes in the config files but due to the error message I think it would be better to ask you.

Link to settings file:

world-settings.json: https://pastebin.com/qKw7677r

(If you need all the edited biome files please request them)

Link to error log/crash log: https://pastebin.com/0vKqetm7