Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ebee538db579ad9adab0ea4521221f7500ace64b04afd15531288e0344339409:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^