simpsons, tapped out. Weekly challenges [ Edited ]

[mich83m544]

Help: simpsons tapped out
The first part of the weekly challenge was to purchase: The christmas tree slightly irregular.
I already have this purchased as it makes me mistletoe daily. It won't allow me to purchase again, I've put it in inventory and back out again but i still don't complete the challenge. How do i get round this as don't want to miss out on the reward of doughnuts?????