I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (’).
freeCodeCamp is on FontAwesome:
https://fontawesome.com/v4.7/icon/free-code-camp
and it looks like that is where you got that snippit of code?
I think we’ll need to see more to understand how you’re loading the icons?