Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c4bcf9325e5356b7446f84bb68ac10830853b89e3ab410cf094cd6c12fb94a11:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^