[0.16.2.0] Can't buy Alien Eyes Hat

I can’t seem to be able to buy the Alien Eyes Hat from last year’s halloween in the Ghoulcery Store, i don’t know what i’ve done to do it, i can buy other items in the ghoulcery store fine. I want to be able to buy everything for this halloween but every time i select to buy the alien eyes, it keeps giving me a transaction error.