we have very minimal mods the list is as follows
forge-1.15.2-31.2.37-client.jar Minecraft
tetra-1.15.2-2.18.1.jar Tetra
dooglamooworlds-1.15.2-1.3.0.jar Dooglamoo Worlds
tombstone-4.5.6.jar Corail Tombstone
ImmersiveEngineering-1.15.2-4.0.0-117.jar Immersive Engineering
worldedit-forge-mc1.15.2-7.1.0.jar WorldEdit
AppleSkin-mc1.15.2-forge-1.0.14.jar AppleSkin
jei-1.15.2-6.0.3.15.jar Just Enough Items
forge-1.15.2-31.2.37-universal.jar Forge
create-mc1.15.2_v0.2.4d.jar Create
effortlessbuilding-1.15.2-2.21.jar Effortless Building
mgui-1.15.2-2.1.1.jar mgui
journeymap-1.15.2-5.7.0b3.jar Journeymap
AutoRegLib-1.5-40.jar AutoRegLib
Quark-r2.1-245.jar Quark
BetterPingDisplay-1.15.2-1.0.jar Better Ping Display
included will be the crash log and the world file
crash-2020-09-17_01.04.22-server.txt
farm testing world.zip

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.

I'm getting the same error with Create 3.1(mod list in crash log).
Crash log: https://paste.ee/p/Z0A8K

Not to necro but I'm getting this issue with a similar mod list as well. On Create 0.3.1c.