Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 11607227b34d1b5dc86a5b67714cbfa92861b835e9798ce5f954d98a250ef3af:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^