WTF i keep getting a "nginx error" webpage when trying to view android forums

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http://androidforums.com – It started yesterday when trying to use tapatalk (uninstalled) and goes away after an hour of no use, When it does happen a nginx error page comes up on browser, and I'm using my phone on WiFi, Evo v 4g*virgin mobile, Its working now but, it randomly happens, (General)