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: --> 0c704900f1036fb4b5af6cc93ffb3527ae9ebba79f3f045bec4adb0a860f535e:103:20 | 103 | let item <- self.listing.purchase( | ^ error: pre-condition failed: listing has already been purchased --> 4eb8a10cb9f87357.NFTStorefrontV2:322:16