Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 22bfbf1e5157db190963817ad7e474e776c5d71f3574ce00273266962759e0b3:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^