Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cc571e7a4da756a8dfedda683ed63f3df7b87cd775454ff3bd7d9508e63e7492:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^