Sometimes a simple crash is that's it's sized up to abnormal, massive, and attrocious amounts and it's not even noticed in blender. Also, for some reason I have the feeling it's not mountPoint6, but mount6. I'm stuck as I have not worked with hats. A newer modder who has made hats is barakuda, if you want to ask someone at a lower level currently who is good and gets it done. He made some hat mods and some weapons. Also, post the console of when you crashed, INFO GET!
Good luck.