Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d8386891b676db61dc12cbccec9f9b27d4e502c186f3eddeca60fa7c46283142:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^