Jetpack cannot connect

Jetpack wont connect now…

SELF:
	Array
(
    [headers] => Array
        (
            [server] => nginx
            [date] => Mon, 23 May 2016 21:39:14 GMT
            [content-type] => text/plain;charset=utf-8
            [connection] => close
            [expires] => Wed, 11 Jan 1984 05:00:00 GMT
            [cache-control] => no-cache, must-revalidate, max-age=60
            [pragma] => no-cache
            [x-hacker] => Jetpack Test
            [x-ac] => 3.ewr _dca
            [strict-transport-security] => max-age=15552000
        )

    [body] => {"error":"Unknown Error","error_description":"An unknown error has occurred."}
    [response] => Array
        (
            [code] => 400
            [message] => Bad Request
        )

    [cookies] => Array
        (
        )

    [filename] =>
)

this is what the debug comes up with...

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