Exploding NPCs

Every time I talk to Cowlen on the docks of Silvermyst Isle in the Draenei starting zone, he explodes and the game crashes. ( http://imgur.com/a/zvi1N )

This has happened once before with a different NPC, as seen here; https://www.youtube.com/watch?v=2EUv...ature=youtu.be (Ignore my friend's ramblings in the background of that video) it wasn't that much of an issue at the time, due to the NPC not being a major quest giver.
But with Cowlen, it makes his quests a pain to complete, as I can't read the quest dialogue for more than a second at a time before I have to re-log.

Any replies are appreciated.

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Did I post this in the wrong place? If so, please let me know.

I've figured out the issue.

Turns out it was caused by the new player models found here; http://forum.warmane.com/showthread.php?t=342190

I was able to fix the issue by installing an error fix found on the mod dev's page, here; https://drive.google.com/file/d/0Bzy...1XU3J3ZEk/view

Hope this was helpful to anyone else having this issue.