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: --> 6780b4a99a6d14b434b4cd5e25b46d878c1b6604dc4aad6caf26d1987beddf89:103:20 | 103 | let item <- self.listing.purchase( | ^ error: pre-condition failed: listing has already been purchased --> 4eb8a10cb9f87357.NFTStorefrontV2:322:16