Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bc20a64f07ce2771113b5c7308647db06b2398c9f849d8b8ce142e1b1c3535cf:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^