Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b43b46eaa789823665c04335ef651180f60597308c7bfd7bab50bb23cca78f5b:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^