Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 17950968d0348d37280d3d37a63c301bfff7e0a92ef3da74f5774909574a0721:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^