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: --> 8ccf0346272f787fe4a0f2a9f131615d932dfc13dbc784c43b2c05cd6d74c91c:13:46 | 13 | self.transferToken <- collectionRef.withdraw(withdrawID: tokenID) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unexpectedly found nil while forcing an Optional value --> 1e3c78c6d580273b.LNVCT:207:25 | 207 | let token <- self.ownedNFTs.remove(key: withdrawID)! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^