Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4c4e6019ab5a009c3b316832305b246b2b0198ae092520ec2a3569583ffad976:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^