Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 34841039bf582e8f256729ad049bc305ceb2d8def607cda6112d014dd91d2ba9:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^