Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b73df8097b2d8feae63e16c5b4a37adddfce578164576fd5a93d1da87ae955d7:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^