Are you sure foxyproxy is still activated ?

I moved the virtual machine to another server, but it doesn't change anything (except best performances), and it's still working for me.
Plus, i don't know what is "http://www.website-unavailable.com/".
Maybe, if foxyproxy is deactivated, your dns provider received the request and redirected you to this page... (you seem to use OpenDNS servers because this is an opendns webpage).