Social media icons with installed theme are displayed strange+how to remove the icons

Hello,

I just installed Drupal 8+ I am a new user to Drupal . I then added added this theme http://demo.zymphonies.com/free-theme/professional-responsive-theme/

When I installed it , comes with pre-installed Social Media ICONS lined across the top of page. I would be happy to use a few and think they would look good there. However the Icons are not displaying properly as you can see on this screen grab of my site ;

https://www.evernote.com/shard/s620/sh/66688eca-8c36-47f1-9fe3-f0a763233…

1. Id like to know if the Social Media Icons are displaying as shown in the screen shot or shown here;
www.mybigtoeinfo.com

2. On the live theme demo http://demo.zymphonies.com/free-theme/professional-responsive-theme/ the home page as a video slide show. What tool or what is used to make the page look like that ?

3. There are some of the social medai ICONS I would like to remove. I am not sure where about in the Drupal admin page to find and remove the icons I dont want. I have found where to change the URL’s of the ICONS but not the icons itself.

Any help would be most appreciated

Thanks
Darren

Drupal version: 


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