Hello There,
Thank you for providing the information. We have checked the files in your ftp and we could not resolve it. Are you using an IIS server? To be able to resolve this, please edit your web.config file and add this:
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
</customHeaders>
</httpProtocol>
For more details, please check the IIS server section on this article: https://community.theme.co/kb/solutions-to-potential-setup-issues-font-awesome/