How can I create only one Pro Site page for the plans

Hello,

The main website is : http://ludovic-labbe-consulting.fr/
I created 3 other websites to test : Site A, Site B, Site C
I'm installing, activing and configurating the Pro Sites plugin.

I don't see the Pro Sites page with the plan into the main website.

But when I want to see the main domain, I'm redirected to http://ludovic-labbe-consulting.fr/ludovic/

And on this page I have 4 links to the Pro Sites Plans page on each website.
I only want Pro Sites plans on the main website.

How can I fix that ?

Thanks
Pending your reply.
Regards
Ludovic