I just updated to Better Questing 1.0.15 and Standard Expansion 1.0.10 to test out the Ore Dictionary functionality. When I edited the item I had setup with my quest and tried to search for "wood" it crashed and I got this error:

http://pastebin.com/Q9mnyP16

Here is a copy of my current QuestDatabase.json

http://pastebin.com/bziQkF7h

This is actually part of a bug with xreliquary and their Void Tear item tool tips. I could add handling to contain this and future crashes but ultimately this has to be fixed by the developer of the items.

I've fixed the crash while searching but this still won't prevent the crash when hovering over the item, that's still up to the item's developer to fix.