Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 67ea1d62ca90838a88dc2f0c09f87ebf8d38d58eb03d97b09fe7a21d87438c2a:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^