Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6034130dae968da1d8f540292106d2d60b2e89970ec6f74ef8075df12f657288:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^