Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
  --> 1fccc2e9d04265505cea6eb484da81316e4edaff87fa3b4ca5569bcaff6f01a0:94:20
   |
94 |         let item <- self.listing.purchase(
95 |             payment: <-self.paymentVault,
96 |             commissionRecipient: nil
97 |         )
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: pre-condition failed: listing has already been purchased
   --> 4eb8a10cb9f87357.NFTStorefrontV2:322:16