Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aed26737673d8bba9eaac1d670fabca32ac1a0711939149279efd5ca24174d1d:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^