Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
  --> 15fcba1af2bf65578f64ebc540df0e8446f42efa39c07092dafd9080727fe358:49:17
   |
49 |     let nftRef = self.listing.borrowNFT() ?? panic("nft not found")
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^

error: pre-condition failed: NFT does not exist in the collection!
   --> 631e88ae7f1d7c20.NonFungibleToken:187:30