Forge version: 14.23.3.2655 (because latest doesn't have /fml confirm)
Twilight Forest version: 1.12.2-3.6.345
Link to crash log:
https://pastebin.com/eh6usyzs

Steps to reproduce:

1. ? ? ?

What happened instead:
OutOfMemoryError

Can you also report this to the creator of Sophisticated Wolves, and also check if this error occurs with other portals?

already made it NightKosh/Sophisticated-wolves#51