Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8b047d954fd39b6907a63a8c767fae933b5e3c84df8436592e51a0ab93d581d3:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^