You have set the CDN and you have a problem with the fonts, here is the solution.
Apache
Add this block to the .htaccess file and the htaccess.conf file at the very beginning
<FilesMatch ".(eot|otf|ttf|woff|woff2)">
Header set Access-Control-Allow-Origin "*"
</FilesMatch>
Nginx
Add this block to the virtual host file and restart Nginx:
location ~* .(eot|otf|ttf|woff|woff2) {
add_header Access-Control-Allow-Origin *;
}
Once the additions have been made, it is still necessary to invalidate the files saved on the CDN.