Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6152e0d1db2d0b4b92e974495704c180938f3f0fc2583023794c77892be25409:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^