Context

My friend has built a train in the overworld, with a small portal (3x3), vent through it with a train, and the server went down. Now i have a sort of "chunk ban" that crashes the server whenever it's loaded.

Crash Report

https://mclo.gs/EDAlstN
https://mclo.gs/KteS9x9

Find the broken train and delete it from the create_tracks.dat file in the data folder inside the save folder, or update to 1.20.1 and create 0.5.1-j

updating to forge/neoforge 1.20.1 is not possible, and deleting a broken train is only a bandage solution. I'll try.