Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8813122a73a40408c1c2e40b956392a3bf30711601616a3c5cb3ba0f992127d7:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^