Status: 403 Content-type: text/html It looks like you're attempting to connect from Cloudflare CDN which may require some additional configuration.
Please kindly take a look at the following article to learn how to use XFileSharing with Cloudflare:
Using XFileSharing with Cloudflare

Note: if you already disabled Cloudflare and still seeing this message, please wait for a while until your DNS zone will be populated.