Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e795b5c59cb2530f80c429e7378beac22f783bdeefd8763cdf26e5656cc22a48:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^