Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 83de78c584419498852533cba25bf48c0d540d5319c949af5641f7cdb01a8e32:80:20
   |
80 |         let item <- self.listing.purchase(
   |                     ^

error: pre-condition failed: listing has already been purchased
   --> 4eb8a10cb9f87357.NFTStorefront:243:16