Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9646296326227a88aa0cac38585cb78ac0c4761adf16a0a43793a3e849810995:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^