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Minecraft Version

1.15.2

Forge Version

31.1.46

Mod Version

1.1.0-3

Describe your problem, including steps to reproduce it

Playing the game normally and out of nowhere server crashes happened to me 3 times and all the same logs anyway I will post them all
crash-2020-05-20_22.01.04-server.txt
crash-2020-05-20_22.23.09-server.txt
crash-2020-05-20_22.44.27-server.txt

Any other comments?

Upgrade to the most recent version (1.2.0). That bug has been reported and fixed already.