Hi Xter -
I only need to see your Haunt.cpp file. It looks like from your logs that a circular dependency has been created whether via trying to create something from something which has not been substantiated yet or via not passing in the correct information to a creation object.
If you can please post the cpp file here, or if you want to keep it private you can message me via the Unreal Engine Forums.
Thank You
Eric Ketchum