If you are still taking 1.7.10 reports, this one is very rare, in many months of playtime I don't really see this one.

EnderZoo{1.7.10-1.0.15.32} [Ender Zoo] (EnderZoo-1.7.10-1.0.15.32.jar)

https://paste.fedoraproject.org/paste/cl2mb8LIcXQW4tx5zB7A1Q

note it is running in a Thermos environment, and specialmobs is in.

Crashlog is gonzo so closing.