Crash:
https://paste.dimdev.org/fativalaze.mccrash

Script:
https://paste.dimdev.org/ufeyocihug.cs

sorry for the huge delay =/

you can't pass anything that isn't a string to it, so by removing iron and hammer it may work.
but, passing defined items and ore dict entries is a really cool idea, and I may implement it on the future =)

thanks a lot! =D

for now, I will close this.