This question is unlikely to help any future visitors; it is only
relevant to a small geographic area, a specific moment in time, or an
extraordinarily narrow situation that is not generally applicable to
the worldwide audience of the internet. For help making this question
more broadly applicable.
Why the "an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet"?
Because we have no idea about which proxy is used, how it's configured, what it's blocking, etc, etc. So, the answers (or likely, the guesses) will be highly debatable.
And if you're lucky, one of the answers will work for you, but it's no guarantee that the same answer will work for someone else, when there are gazillions of proxies out there. Thus, the "This question is unlikely to help any future visitors".