Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 527719d0318508d74c18d29d7aff537686346d9a016a1f681250ac5623978239:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^