Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 17562c2d035aac22b6ec573444046649bd4fd12924918e90a39c5bf4102165c2:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^