No JSON, site not secure, site layout missing

It's me again :) So I have launched my site and have a few problems: I wanted to add the SEO details and when I went to save I got: no JSON reaction. Since launching the site, if I google it I see only text, no layout. I have asked a few friends to also try and they get the same problem. However, if I click on the site link via instagram or facebook, the homepage is visible but all the pages and posts are 404 pages. Also the site comes up as not secure. what am I missing? Once again thanks!