CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 1 error occurred: * transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed: --> 0c0d7e6c150986611a70ba09a3c648629e3a4b2082b993a52cbab5005f176632:72:20 | 72 | let item <- self.listing.purchase( 73 | payment: <-self.paymentVault 74 | ) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: pre-condition failed: listing has already been purchased --> 4eb8a10cb9f87357.NFTStorefront:271:16