Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 35a28854d517f89d1a90d1d68c16dacc5b38877c0c1fd245ab7023b1ff6805e2:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^