CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] cadence runtime error Execution failed: error: underflow --> e1d2ab7b3be43aa800d333e6042e5a26b0bf53a16eeb509f211a3f19ad997172:16:8 | 16 | let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^