Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b51d4e070a6e248a575747abed15172ca9fb381f2653ba30391923f523a3b6cb:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^