Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3ee8df495ab92637eeaf602365597bde2164a22a0f842864b72bbc3b833a0715:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^