Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f88b090d670fdcd30a422f63a614063a080c6f3d8ec29398b3b184a46190ca57:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^