Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 98b40053448b41cebd3a4273f116dad75360e67c01d2c5092e40607635e2fffa:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^