I get this message all over when i try to do different things. Cant even get into gtarcade's forum to complain either

The proxy server received an invalid response from an upstream server. Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: http://accounts.gtarcade.com/openid/...29564955d3658e
Server: 63-159-217-86
Date: 2016/03/25 22:16:05