Not showing private sites

Hi, I have a private network where users must be logged in to view most of the sites. Only the public sites are visible using your plugin. Is there a way to bypass this?

I would really like to have a list of all the sites on the network (public and private) but I am having difficulty finding a way of doing this.

Thank you

https://www.ads-software.com/plugins/multi-site-site-list-shortcode/