You can install the theme and for some reason there are no icons displayed (they can be missing due to the server configurations or because of the Ultimate Addons for Visual Composer plugin was activated). You’ll also be able to see such warning message in browser console:
Failed to load resource: the server responded with a status of 404 (Not Found) http://ronneby.loc/wp-content/uploads/dfd_ronneby_fonts/Ronneby/Defaults.css?ver=4.2.3
Please, don’t worry and unzip this archive to the following folder: wp-content\uploads\dfd_ronneby_fonts\ronneby\
That has to help to display icons on your site. If no, please, mail us your wp and FTP access details to firstname.lastname@example.org and we’ll try to help.
DFD Support Team