Metadata attach recurring crash in Red Vale

I was following the spirit in the Red Vale, and right as I was told to kill the rare effected by it my game crashed and will not allow me to log back in. I keep getting the following exception: "Metadata/Monsters/TormentedSpirits/SnakeHeads.ao cannot be attached to Metadata/Monsters/Frog/FrogPale.ao at invalid bone root_jntBnd"