Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 12a8e9725d5e1613040cd9513e0735a377d49da9103ae00382a20a43c8177d46:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^