Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5d2b76aaecb61c5991b703bfa0d662a622a3824233f3226cb756f45221419995:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^