Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f597797ef816edaaa3121c999f2aa09a368a315513b886ce669bcda94b5e4749:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^