Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ef6e5ca39dc46c83a2ca7279ac733b3c2d1619e25e417e412a7ba38f04623b02:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^