Describe the crash
We were in an invasion in which I used my fire dragon to defend the base, I live in a biome of eucalyptus trees, I think the crash occurred one after another by the fire of the dragon in the wood or the leaves, we opened the server repeatedly until it cleaned the wood that was burning and stopped crashing.

To Reproduce

Use the dragon's breath to burn eucalyptus trees
Crash Log
https://pastebin.com/WXQMVpzq

crash-2020-04-15_22.48.59-server.txt

Info (please complete the following information):

• Modpack Version: 2.77
• Server or Singleplayer: Server
• Version the world was created on: 2.76

Duplicate of #54