Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 36d484f390732a617faf20a827a0ab5154bc4b7b313934f7bde63ec860b7c420:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^