Hello @fedias0710,
After installing the fresh copy of the theme, you need to enable the sections as per your requirement by going to Admin Panel > Appearance > Customize > Homepage Sections > Manage Sections .
Now you can set up section as per your wish . Similarly fill up other required field in the customizer .
You can refer to the theme official documentation given below to set up exactly like in the demo
http://themepalace.com/instructions/themes/onefold-pro/
If you have any confusion while setting up the sections you can post them here and we will happily assist you further .
Best Regards!!