Overlap is empty

I copy this from illustrator, but the overlap area is empty,how can i make it well?or repair it?

thank you

Then the path direction of some of the paths is wrong. All black shapes should have a counterclockwise direction. You can manually fix that but you can also run Paths > Correct Path Direction.

And you might like to read this:

it‘s OK!thank you very much!!!!!!!!!!!!!!!!!!