Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 27193c70ceea72b2aaab01ec966f0724a9feaabda9a87bdfeacb6672370c7755:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^