Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d954775d1b6c5b3ac146a576e98666bc3b23275759f4580bf0c2e15508b15747:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^