So I made this comment on a prior issue #625 but it's been closed so I don't think it was seen.
I've been searching for an answer to this issue and I keep coming to this issue entry. So I'm hoping I'm in the right place to put these logs. I've read through and updated MFR to the latest version (MineFactoryReloaded-[1.10.2]2.9.0B1-230.jar) and I'm still given the same error. I also have the exported zip file given by the Twitch launcher. It's also worth noting that this hasn't started to happen until I installed Forestry (forestry_1.10.2-5.2.17.388.jar) and at the time I was using MFR version MineFactoryReloaded-[1.10.2]2.9.0B1-226.jar. The issue has persisted regardless of either version of MFR stated.
Server version: forge-1.10.2-12.18.3.2511
Crashlog: Gist
fml server log: Gist
Server log: Gist
I'll reference this comment to Sengir and his team on their GitHub as well, hopefully, this can help find the bug and fix it.
Addendum: Since the Forestry team doesn't support 1.10.2 anymore they closed the issue without further exploration. Hopefully, this won't be the case here as I'm getting kinda desperate for a solution.