Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c042f32474a9843822093ea0c1bf6867a0eca1c28b56096ad8f8949deb1563df:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^