I can't view the home page

I've been created a new web and now I can't view it in the home page.

- We have the newest Wordpress (4.4.2)

- We've activated lecture options: show in home page

- Home page is seen empty, although it has a large structure made with Visual Composer

- Now we only see last entries as a home page, no static page

Is there any bug? Do we need to activate License Key? We have some problems to do it.