Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 58a3df06a027fb9d3361d510fd785fae3b0c983114b54315e480505ccc340c5b:80:20
   |
80 |         let item <- self.listing.purchase(
   |                     ^

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