I am using facebook sdk 3.1 framework for my application. The login process works successfully and returns to the app after facebook login both in simulator(iOS 6.0 and 5.0) and in iPad(iOS 6).

But When the same is deployed in IPad with IOS 5, after login, it does not return back to my application and shows a blank white Screen or sometimes my application closes.

I dont know what went wrong in iOS 5 and facebook sdk 3.1 framework, also i am not getting any logs to debug... Please help

Iam using this code for login

 NSArray *permissions = [[NSArray alloc] initWithObjects:
                        //@"user_likes",
                        //@"read_stream",
                        @"publish_stream",
                        @"user_events",
                        @"read_friendlists",
                        @"user_birthday",
                        @"email",
                        nil];

[FBSession openActiveSessionWithPermissions:permissions  allowLoginUI:YES
                          completionHandler:
 ^(FBSession *session,
   FBSessionState state, NSError *error) {
     NSLog(@"state %d", state);
     [self sessionStateChanged:session state:state error:error];
 }];