Error 502 – Bad Gateway Whoops, something went wrong at our* end!

I am on a weekend "get a way" trip to promote my latest adventure with WPMU DEV to some potential investors/clients/new partners and got the following error message:

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IError 502 – Bad Gateway

Whoops, something went wrong at our end!

Please try again later or contact us if the problem persists

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I have tried "again later" several times but the "problem persists" so I'm contacting you as instructed. I can't do it live through "chat" at this time. Can you fix it without my direct intervention or does it have to wait until I get home tomorrow?