Can't create auction

Gm! I’m having an issue creating an auction in the gallery app. When I click on the gallery app to create an auction it says I need to create aa contract on ERC721, so I did that and it’s not showing up in the gallery app. Do I need to deploy it to mainnet for it to show up?

Have you minted a token yet on mainnet yet? The Gallery helps you list existing tokens for sale on mainnet.