Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a0788fb5fce733261886c1a1c609693a83982f297a1228ea695c3fef3ee744ff:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^