J-BusinessDirectory - "Add business now" link not working

Hello
I have the same issue as in your demo site. When I click on the "Add business now" button on the main page, I have the following error:
Not Found
The requested URL /j-unix/index.php/directory/business-plans was not found on this server

Can you help on this issue please?
Thanks

Christophe 

Thanks for answer from support team: needed to edit the link of the page through the SP Page Builder.

It works well.