I can't use some items in my inventory, and instead I get this error message, so all I can do is use Quick Stock to move them into my vault, because at least that works - as did being able to burn the Red Rreign dolls despite getting this error message when I clicked on them. I would like to be able to feed my Chai one of the new pumpkin items I got from Fantine but can't because I get this error message when I click on them.