Why can't I publish pages in a Wordpress theme?

Question

WordPress

themeforest.net/item/emily-a-clean-theme-for-photo...
Why can't I publish pages in a Wordpress theme? (I went around like this: I save it as a draft and then publish it through the properties).
And on the main page in the portfolio, prepared galleries are not laid out (not a single photo)!
If you need a topic for the test, write to give a link ...

Answer 1

On ThemeForest, all themes are laid out with documentation. Read it. If not, all authors give free support and you can ask them personally.
Well, in general, I assume that there is some kind of a certain type of post. Or when creating a regular post, you need to put a tick somewhere.

Answer 2

Judging by the URL and page code, in the subject of the photo, this is the Portfolio post type