Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 068604d1e9f1d1d938c07c37da736a43918aa06edb62fc577c9792ff004aad48:15:8
   |
15 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^