can not connect to the jetpack by wordpress

I can not connect to the jetpack after I deactivated and reactivated the jetpack.
PLS HELP. My site is kingtietravel.com
Thank you very much!
Following message showed up in jetpack.

Your Jetpack has a glitch. We’re sorry for the inconvenience. Please try again later, if the issue continues please contact support with this message: verify_secrets_missing
Try connecting again.
Error Details: The Jetpack server encountered the following client error: Verification took too long

Debug shows:
It looks like your site can not communicate properly with Jetpack.
SELF:
Array
(
[headers] => Array
(
[server] => nginx
[date] => Tue, 31 May 2016 18:58:37 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.bur _bur
[strict-transport-security] => max-age=15552000
)

[body] => {“error”:”Communication error”,”error_description”:”We were unable to make an XML-RPC request to your website. Please make sure that XML-RPC is turned on and that Jetpack is installed, activated and connected with your WordPress.com account.”}
[response] => Array
(
[code] => 400
[message] => Bad Request
)

[cookies] => Array
(
)

[filename] =>
)