Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 762bcdc3234d2c1941abd1afa203ed4b1622936bee62bae849740b5e5129aea7:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^