Expected Results: NPC's should spawn into the world and work gracefully with the rest of the server.

Actual Results: NPC's seem to be causing a conflict with either forge or another mod installed.

After the Ticking entity error occurs the server can come back up, but as soon as the user who tripped it logs back on the server goes down.

Crash Report
https://gist.github.com/N00bTaco/23ab60f72b1c6115f1ae

Ver of AW2 Ancient Warfare 2.4.105 Full
Ver of Forge forge-1.7.10-10.13.4.1472-1.7.10-universal

(I also tried to roll back to forge-1.7.10-10.13.4.1448-1.7.10-universal with no luck loading the game.

Derp on my part, this is due to a change in Java 8.
Either update Java or wait for the hotfix, please.

That is awesome news! I should have updated the VM to Java 8 in the first place. I will do that and report back.

Thanks for the quick response.