Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 346852a4a77cd14121c76067540763f060c53de8ea2d17f8a6267973e3c7c109:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^