Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3c03bce8c3210b5f1f2261464fdcf435a67008200969e6f1ec286b35bb8883c4:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^