Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 566f448cb21e84bbd28ad9d4b7d01213b9c95096175959874ed31646315815a9:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^