Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 02b22f210ca523fdcb580fbec31e4b1731d437b6184add5506b6bf69e4e13b44:15:8
   |
15 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^