Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9a728a5420430b7ba4b129bc2b9065f06c294112a583c5165ef61a961ac67484:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^