**Problems? Ask google, I don't have the file anymore and therefore can't give any information.**
I converted this model from the SFM model of Alpha_Derp: https://sfmlab.com/item/2887/
I have only converted this model from SFM to.fbx and cannot promise that it works flawless, the conversion was work enough. Besides, i am not familiar with all 3D software, so i can't help with every error or bug. In this case it is best to ask google or youtube. This is only a downloadable model and i do not guarantee support!