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 --> 2ca0ab56b41b68b7cba456a972b0c46a8235f1d51a6b16cbe7b162c1b2816f68:10:23 | 10 | self.TokenVault <- user.storage.borrow<auth(FungibleToken.Withdraw) &stFlowToken.Vault>(from: /storage/ststFlowTokenVault)!.withdraw(amount: amount) as! @stFlowToken.Vault | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^