Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 50b46a99af2ce48d510365ec80cbf6e3f6f0816f7938ebf7ca6c575c7a3d3e10:80:20
   |
80 |         let item <- self.listing.purchase(
   |                     ^

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