Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cae66955d8b935874d1ebef2856caa23db7f464ea3b09482d60473b1127ff7d4:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^