Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ff1e03e601f882eab13ac1ead4dba402679dd6364ab9d19de521ccea756be12a:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^