CODE_ERROR

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

[Error Code: 1101] cadence runtime error Execution failed: error: underflow --> 59643d7b4184e109d5554b04ac55d6fc5a99c2d500ed2a152f6faa592834bc84:15:8 | 15 | let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^