Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d337c185124a272cad3cb6754b2818ccb371ff490e4663728a6527c751a2aa2c:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^