Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cb56bb6f9a537a5457284d10625798a0717f0e07dbb4ec40351deb57e3102672:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^