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: --> 03578e0504154bfeb3ee9d7ebfae55b4e13cb90a9b666c17c28bccfad789a8b9:12:46 | 12 | self.transferToken <- collectionRef.withdraw(withdrawID: tokenID) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unexpectedly found nil while forcing an Optional value --> 8f3e345219de6fed.NFL:86:25 | 86 | let token <- self.ownedNFTs.remove(key: withdrawID)! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^