Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5c4c1d532b713162fb14fc209ade8c3bc5c4907021379d72b3157b3324176072:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^