Problem with the current menu item in the navbar

I use the plugin MaketPress and I now have a small problem.When I click in the menu on the product category Women's shoes it shows me two active links : Women shoes and About us- although I have "About us" not clicked. That only happens when I click in the navbar menu on Women shoes ever other product category in the navbar menu works fine.

Hope that you can help me out.

Thanks a lot,