Unable to connect to facebook

I am having trouble connecting to Facebook via the Management screen, i can put in the facebook security but then after about a minute i get a Http error 504: Gateway timeout..

I am on iOS Version 4.3.1 (8G4) Iphone 4

Anyone else having an issue?

Is your wi-fi connection good?

Yes everything else connects through facebook, just not haypi it did until i upgraded to latest iOS.

Ive rebooted the phone and removed the gamecentre and haypi and facebook then reinstalled, problem still exists

#1 check connection and ISP
#2 reset the connection
#3 if that still doesn't work a total reboot could work :S don't think you'd want that though.
#4 give it time and perhaps it'll work