Yes, it costs few bucks per month, but in return you get total online anonymity and you can access any website from any device.
VPN is much better than a free web proxy, and it works with any website. Stop searching for it, check this page: Best VPN provider of 2017 → Is possible that in some cases you cannot access because a web toolbar or a spyware has modified your web browser's proxy settings.
Hit the button "Unblock Website" to unblock access to website and surf Internet anonymously.
So you may try to reset the web browser's proxy and then you may try to access again the website to see if it works fine.