Crash Log:
crash-2021-06-27_19.50.09-fml.txt

Create Version: 0.3.1c
MC Version: 1.16.5
Forge Version: 36.1.32

Remove the enhanced mushrooms mod

Same problem with "The Outer End" and "Endergetic Expansion".

The Outer End:
crash-2021-07-01_11.55.59-fml.txt

Endergetic Expansion:
crash-2021-07-01_11.58.27-fml.txt

After restart the game, now crash "Upgrade Aquatic"
crash-2021-07-01_12.24.06-fml.txt

Seems to happend with windows variants.

Duplicate of #1799