Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6704e923d161c1e2495a725845b02171d5dc5b7dd47646771a08b40e35e51521:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^