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: --> bf953bbdbe3bb63df866b1347ec3e05ae46dc129e237239e6a420ca2868b5306:72:20 | 72 | let item <- self.listing.purchase( 73 | payment: <-self.paymentVault 74 | ) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: pre-condition failed: listing has already been purchased --> 4eb8a10cb9f87357.NFTStorefront:271:16