Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b9b7a900726ce63a157008b9290be55a5831632f2d5e1255e18a5db7ac782999:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^