Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 952781f6039d2fdca53fddeff420fcac2bb20051b5bb6958be566375121bf961:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^