Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3d83d109deff16de879d2521a709c1343f8453017d0cca50e4ca64d64e809289:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^