Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9278b267287868752541bf1c3aa2a760193f4866ebff40062111c1e446036137:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^