subdomain pages all the same

I spent the weekend trying to to fix this. Can’t find where to do it. I am using theme SG Window. I have one mother site different from six sub-domain sites. I have a home page on each sub-domain and I am using the plugin Business Directory 3.7.4 so there is a businesses page on each sub-domain. I have named six more pages in the “pages” and named those pages in the Menu. I have been using Layout Builder and Site Origin widgets to build a static About Us page. I have discovered that whenever I click on any page (excluding “Home”) in the menu, the same business page appears. Every page no matter its name on the menu, brings up the Business page. I can’t find where the page titles are all linked to the same business page. What am I missing? please help. Thanks.