Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9e03ad1ad7c3f670c42c4c268813c92ff64470ddca57479c99584798789d6801:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^