Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 267a381afb93d9f75c29acdcee4992039ea901cb5a4869f058c1d328b97629cd:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^