Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3290e61c22e2266aca53a21e12688493a146abb4975a424924607445af2460b8:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^