Describe the bug
MC crashes when loading singleplayer world

To Reproduce
Steps to reproduce the behavior:

1. load a pre existing world after updating the mod

Expected behavior
world loads with no issues

Versions
Entity Culling: 2.1.5
Forge: 36.1.0
Minecraft: 1.16.5

Other
Crash report (upload as a file): https://gist.github.com/Lupus590/007a198766578933a981ef8471b1574a
Latest log (upload as a file):
Singleplayer/Multiplayer: singleplayer
Other mods (that are necessary to produce the bug):
Other mods (that are also installed): there's a list in the log

Please test which mod is incompatible with EntityCulling or if the crash also happens without any other mods installed.

Still crashed, loaded a copy of the same world. https://gist.github.com/Lupus590/007a198766578933a981ef8471b1574a#file-just-entity-culling-installed-log

Fixed in v1.16.5-2.1.6