Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5e33df5a912c9284d445279f388ecb658a81d46859a941e84c2344f6458c4da6:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^