Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aad454579e7a9cdc0cec27bb57d7983e5e5b277b88de98bb7f803f4935058098:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^