Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 47d906a16f506b1265a8bc1ef02b244e343c12fb788997cc4f5f331bc4cca2fc:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^