Icons are showing up as white squares?

Hello, im having an issue with the icons.

They are showing up as white squares.

This happens only in google chrome, on most computers (If not all), im not entirely sure.

Elliot has already told me to access the .htaccess file and type in:

<FilesMatch “\.(ttf|otf|woff)$”>
<IfModule mod_headers.c>
Header set Access-Control-Allow-Origin “*”
</IfModule>
</FilesMatch>

But I dont know how to access that file.

Is there any other solution to the problem? I dont like to touch these files, since im not really experienced in that sort of things hehe.