Loads fine in single player and makes a world, but on a server crash-

https://gist.github.com/ProsperCraft/5e3aa44e0b58f1dcfa6ab5342332bbe7

Portality-1.14.3-2.0.10.jar
Forge .51

Modpack - https://www.curseforge.com/minecraft/modpacks/the-adventures-of-halk