Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5591b8d794f6a63c2927349a66be408383c9eb1488e5065afc099f5c1ca6a598:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^