Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f5339043b7f3f27304a3b936c90692d49178b611f896c2e80b27f14700347756:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^