Dear Vlad,
I was able to access the admin area and checked the insides, but the problem seems to be in the php code of the shortcode include, which I cannot see without ftp access (WordPress Editor only allows to view the code of the top-level files). But before that, I’d like to ask you one thing which may solve the problem without the need for additional checks: could you please provide the full server folder address of the theme’s installation, starting from “wp-content/” and down to the theme’s folder?
Sincerely,
Andrew | Satori Studio