Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 82bd2e361061eb3ada57193942df2c9899cea6c09f7e53bb5d2b880e2c80d781:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^