Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 62948b5cdacfcb690b4db47493dd6160ef36e7ec0b005c0138a18779a21885b6:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^