Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fd08db6c7619925517f27e23ca24b0d96391a6948c528ad3429c75a126c9b345:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^