Okay. It would seem that the SE tweak mod is using unreliable/too broad criteria for narrowing down which recipes to change the ingredient and result amount of. It searches the entire recipe database for any recipe with the string "molten" in their name, and that criterium accidentally applies to several recipes within the TSP mod. So in the first place, the SE tweak mod attempts to change recipes that it shouldn't. As for the error message, the mod further tries to change a property called result_amount [EDIT: result_count (my bad)], but this does not exist within the code for these particular mod recipes. Instead TSP uses either the property result with the amount of 1 merely implied by default, or results which contains its own set of properties, type, name and amount. You can read about the alternative methods here.
So the problem doesn't really lie with this mod (TSP). It is the SE tweak mod which has to refine its criteria and error checks so it doesn't apply changes to the wrong recipes, or fails to load when it doesn't find the expected property for those recipes. The error message is kind of besides the point in this case.
Hope this helps.
