Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 982c636dfe896f4b527cb76399865f4443dcf46167282aa334e9e5d82bfed5a8:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^