sell shop at a chest for heads

Jan 29, 2020
hey eveyone,

I tried to make a sell shop on a chest with a sign but it didn't work i asked a helper for help and he said to post it here.

the problem is:

when i make a sellshop everything goes fine, but when people try to sell their item that you can sell in that shop you can not sell your item because you don't have the item it says even if you have the item in your inventory we only tried this with heads not with blocks.