Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 980cc110e8eafc21569e7225247702da0d74914c4f034db2c7b5b3984e5b8bac:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^