Solution for this topic
Sorry to hear of the problem you are having.
I could confirm the issue on my test site therefore notified the theme developer about this so that it will be fixed.
The issue will be fixed ASAP.
In the meanwhile you can try resolving the issue by using the attached small plugin specially developed for you that contains some custom code.
Using provided plugin solution all the icons are working fine on my test site as displayed in the attached screenshot.
Please make sure you are using following latest version of theme.
Please login to access this file
This can be due to plugin conflict on your site so please try temporary deactivating all plugins except Unyson plugin and see whether everything works fine and then enable the plugins one by one to see which plugin is conflicting if any.