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: error: unexpectedly found nil while forcing an Optional value --> 574e04183fc1a691b208d9c3b329cf81183e65291c835c1e79d46e97367df460:97:18 | 97 | let nft = collection.borrowCard(id: saleItemID)! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^