Well idk what really happen i just crash and it seem to be between this mod and Misty World so yea here is the crash log: https://pastebin.com/QTsm8rwu

simply generating terrain

im in a modpack so if you want i could give you a mediafire link to the indev version
if needed

This looks like a misty world issue, so maybe try reporting it there?

What were you doing when the game crashed?

ok i'll also link this issue in the report

seem like the last release (they did it after i create this issue) fixed this issue since i've been generating for about 20 minutes without any issues :)