Using Shortcode Icons Don’t Display When Using Logged Out Browser

I have been tinkering with this plugin for two or three days now. I think what I am trying to achieve should be very straightforward, but I can’t get it to work. I am using the shortcode to insert five social icons in my site footer. To achieve that, I am using the shortcode that the plugin generates.

Now, after I have all my icons set up and tweaked, and when I insert the shortcode into the page footer and publish, everything looks perfect. The icons display exactly where they are supposed to be, and the links work perfectly. Everything seems to be fine, but it’s not fine because using a browser that is not logged in, no icons display. I have checked for any special user permissions, etc., and there does not seem to be anything that should prevent these icons from displaying.

I am not a developer, I don’t have expert level knowledge, but I do know my way around the WordPress dashboard, and I think I could fairly describe myself as an intermediate user, but definitely not a developer. Has anyone else experienced this problem, and if so, can anyone tell me what the solution might be? Alternatively, if anyone can suggest a plugin, ideally a free one, that this can be achieved in, then that would be appreciated also.

At time of writing the issue can be seen on my website Top Chefs Recruitment.

I am kind of at the point now where the size of the problem is becoming overshadowed by the amount of time I have spent trying to fix it, and I am close to just abandoning even trying. Any help would be greatly appreciated. Thanks.

The page I need help with: [log in to see the link]