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: --> e9fbd4cf95e2a5433bedf9e6c9bf9b567f7ed85b8f5c6e984ac2b29003bcde9e:19:11 | 19 | if tryBI(tokenInVault: flowTokenVault) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: underflow --> e9fbd4cf95e2a5433bedf9e6c9bf9b567f7ed85b8f5c6e984ac2b29003bcde9e:35:24 | 35 | let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^