Insufficient treasure

Hi guys, I've got a gold box and i wanted to sell it but when Im putting it in market, it says 'Insufficient treasure' , same happens when i put Enhancements. Already tried reinstalling but nothing changed. I cant even open this gold box...
My soft version is 3.1.2, greets

You cannot put a gold box into the market, you can only sell it to the NPC.

You can't sell gold boxes, silver boxes or enhancement stones in the market.