Issue type (Crash / Bug report / Suggestion):

Crash

Crash report (If applicable, put the crash report in pastebin, gist, etc.):

https://pastebin.com/S8uYXx91

Game log (If applicable, put the log in pastebin, gist, etc.):

Affected version (If applicable):

Minecraft version: 1.11.2
Forge version: 2386
Exchangers version: 1.4.1
--Put the versions of other mods below this line if needed--

Issue Description:

Server crash on startup

Steps to reproduce (If applicable):

I lied! I was on 1.4.

...
I had to double check the codes on my side then xD

The Twitch launcher had 1.4 labeled as the latest version at the time of posting. I didn't bother double-checking the version number until afterward.

Yeah, it takes a while for the Twitch Desktop App to update, but yes, I've already fixed it after I saw #13.