Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 253604e54518040afcc4bda208df0c2306013bfd0a61924d806141ca5a78ab96:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^