Hi,
I've just added this mod to my modpack and have found that the game crashes whenever I attempt to even load a world with this mod installed. After doing some testing I've found that this crash does not occur with this mod alone and is definitely the result of an interaction with another mod. I'm not sure which mod is causing it at this stage, but I will report this crash nonetheless.

Minecraft version: 1.16.5
Forge version: 36.0.7

Crash Report:
crash-2021-01-27_20.29.15-server.txt

Latest Game log:
latest.log

I will let you know if I am able to find anything else out about this crash.
Let me know if there's any more information that you need from me.

Update: I have found out which mod is conflicting with this mod! It's a mod called enhanced celestials.

Here are the logs and crash report generated by the issue with just these two mods:
latest.log
crash-2021-01-28_00.41.11-server.txt

Update: I've created an issue on their github as well:
CorgiTaco/Enhanced-Celestials#5

https://hatebin.com/pfnrhmtcks
Getting this as well

Fixed in v1.0.2. You may close the other issue.