Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d250cd4bb155150cba2c9c808c134443063389121716b6b5d457f8f1f71ac0c8:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^