Unable to connect facebook

i got "An error occurred. Please try later" in the pop up facebook dialog, follow on i got "Login failed: failed to receive access_token" I am from singapore Gamezone Server 604, App version 3.11.6.

[support9]

are you able to connect Facebook in the old versions?
Did the error message pop up ever since the update?

Please kindly provide me with the following:
a. what device you are using
b. android OS version no.
c. a brief description of the in-game actions you did right before the error occured.

Please feel free to post a reply. send a forum pm or contact kingdomsupport@haypi.com

I'm using a samsung galaxy note 2, then after i tried on a htc incredible s. Both also unavailable. note2 is running on 4.1.1, htc is on 4.0.4

What i did in-game is
General>
Management>
Connect with Facebook>
Connect with Facebook>

at this point i can no longer login to facebook and directly was return with title "Error" message "An error occured. Please try later". After which i click ok and return to the previous page.

i receive the following message > "Login Failed: failed to receive access_token"

I get the exact same thing...
And I have iPhone 4S

Same problem on both of my iphone5 and 4

[support9]

Thank you for the info, we've submit this problem to our testers and will see what we can do.

I get this error as well >.<