Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d3f9dfa9da522bf4e32e352584536265f00f504e70b9150e8198d5405d7a079b:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^