Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 559b4740960f95a8bf1a8184b36b6ac10e83efc7743723de4e663df01e7500be:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^