Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2fa9117f3764f067296ef5423402e6a74756b5191ed16d86544f13936f95fa66:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^