Was just walking around after anight mining, zombies where burning and dying then boom random crash.

crash-2017-05-28_12.14.12-server.txt

Getting the same crash, here's the report: https://pastebin.com/g6A1ZFRj

getting the same crash here but it gets worse. it'a a LAN world with myself and another. upon the crash happening all progress in the world has been lost since the last log in which was many hours ago. this was using the Raxpack 2 modpack on Minecraft 1.11.2. See pastebin:

https://pastebin.com/3XL3Vkj8