Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 23cfbb78efc968713d7fbc037623ad3df2ba3162a92539fe940210024dac354b:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^