Yeah, I've had a few errors like that reported. It has to do with how I'm auto-generating recipes for ore conversion - specifically what constitutes ore. There's another thread like that, as well. I don't really know how to solve those universally. It seems like there's always some item from a mod that slips through my checks. I haven't done anything because it would require effectively a full re-write, I'll try to get to it at some point.
Of course, if you have a suggestion for a generic fix, I would absolutely love to hear it :) This isn't sarcasm - I'm genuinely not sure how to proceed.