Crash log: https://paste.dimdev.org/aqavulapab.mccrash

For a little context 2764 was out to fix some bugs introduced by this PR, but now it just crashes IronChests at start.

I can confirm this happens for me as well.

I got the same crash.
crash-2018-09-28_18.53.48-client.txt

Confirmed crash. More error logs: https://gist.github.com/Orygeunik/dc88777c021bbb004f739d60bb8e86e1

Apparently this was fixed in b2765. At least this started well here.

From its changelog:
LexManos: Fix NPE on clientside entities constructed with null world (#5170) | Relative PR