Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 023615c205239c38ea6c8dcdf4600783a4b5415082beafe78e29d307eedda56f:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^