Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 701cae2712fba5cd08e6929b970aed562826fefb52a0bfdae26f770203e57746:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^