Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 094831b2356b78c120a2115794f59905a1ce85f03869ff7a6ccec215b9c856af:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^