Vanilla Tweaks Version: 1.5.5

MinecraftForge Version: 28.1.1

Minecraft Version: 1.14.4

(Optional) Just Enough Items (JEI) Version: 6.0.0.11

(Optional) Baubles Version: not installed

Client or Server?: Single player

Crash Report (via. Hastebin):
crash-2019-09-16_19.55.37-server.txt

What happens / happened?:
Game hangs / crash on creating a new world

How can the issue be reproduced?:
Yes

** Mod List**: In the crash report

Hey thanks for reporting the issue. I tested on server but not production i will release a fix tomorrow.