Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 765d062c720caf87cf7559ba20a74205a8e7bd171952435cc1d144d2c3842689:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^