Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 51681e5fc395491cd0736178bfc217d3fc54174eca3662642f5b7fb80b0546a2:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^