http://pastebin.com/VDHAjtPQ

Crash details linked above. I've tried killing all entities in the world via server command, and the server runs fine until I log in, but as soon as the server attempts to load the fallen knight, the whole thing goes kaput. Unable to find out how to clear out the fallen knight that is causing the issue, or if the issue is the game attempting to spawn a fallen knight.

You are using the EnderZoo version for Minecraft 1.9.4 on Minecraft 1.10 . That won't work.

I appreciate the reply, thanks! I suspected that might be it, but wasn't sure, since I have a few 1.9.4 mods that run okay on it. I'll just keep an eye out for when the 1.10 comes and disable EnderZoo for now.