Hi Ha,
I'm guessing you ran PERC with the –hier option. If so, your results are hierarchical, not flat. Can you show the complete result in the PERC Report, please?
For your second problem, in RVE, you can open Setup > Design Tools and you'll see this:
Check the configuration of both the Layout Design Tool and the Schematic Design Tool. Choose the appropriate settings for what you use. Ensure the check box by Schematic Design Tool is enabled.
If the port socket 9189 is taken up by some other process on your machine, choose a different port number. Clicking the blue arrow icon next to the Socket Number field can help.
dan