Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b5fd45a13f52be1c7877770da39af21b2a6167bff223888cbec3bebb30f74755:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^