Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 63fabdb23d2043be66726a725b6e715a2d667b942363bcc773ac9b8d251242e9:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^