Unity Facebook SDK For Android Crashes when Logged in

I m developing an android Application , in which i connect to facebook , i get my Facebook User Info, invite my facebook friends and publish a link for my application in my Facebook Wall. I created a 3 GUI Buttons for that.

The problem that after i login , get my Facebook User info but after that the application crashes. Here is my code:

using UnityEngine;
using System.Collections;
using System;
using Facebook; 
using Facebook.MiniJSON;
using System.Collections.Generic;
using System.Linq;


public class InitAndLoginToFB : MonoBehaviour

{   

bool isEnabled;

bool isLogged;

string userId;

public string get_data;

public string fbName;

public string fbId;

public string fbMail;

public string fbFirstName;

public string fbLastName;


public GUIText guiuser;

public GUIText feedd;

void Awake()

{

    isEnabled = false;

    isLogged = false;

    userId = "not received";

}



private void SetInitFB()

{

    isEnabled = true;

}



private void SetAvailability(bool a_status)

{

}



void LoginCallBack(FBResult result)

{

    if (result.Error != null)

    {

        Debug.Log("Receive callback login error :: " + result.Error.ToString());

    }

    else

    {

        if (FB.IsLoggedIn)

        {

            isLogged = true;

            userId = FB.UserId;



        }

        else

        {

            isLogged = false;

        }

    }

}

void Start()

{

    // Must call FB.Init Once

    FB.Init(SetInitFB, SetAvailability);

}

void callBackUserInfo()
{

    FB.API("me?fields=name,id,email,first_name,last_name", Facebook.HttpMethod.GET, UserCallBack);

}

void UserCallBack(FBResult result)
{
    if (result.Error != null)
    {                                                                      
        get_data = result.Text;
    }
    else
    {
        get_data = result.Text;
    }
    var dict = Json.Deserialize(get_data) as IDictionary;
    fbName =dict ["name"].ToString();
    fbId = dict ["id"].ToString ();
    fbMail = dict["email"].ToString();
    fbFirstName = dict["first_name"].ToString();
    fbLastName = dict["last_name"].ToString();
    guiuser.text = " Username" + fbName + " userId " + fbId + " First Name " + fbFirstName + " Last Name " + fbLastName + " Mail " + fbMail;
}

void OnGUI()

{

    if (isEnabled)

    {

        if (!isLogged)

        {

            if (GUI.Button(new Rect(5, 5, 100, 40), "Login FB"))

            {

                FB.Login("email", LoginCallBack);

            }

        }

        else

        {

            GUI.Label(new Rect(120, 5, 200, 40), userId);

            callBackUserInfo();

            if(GUI.Button(new Rect(30,100,100,40),"Feed"))
            {
                CallFBFeed();
            }

            if (GUI.Button(new Rect(30, 150, 100, 40), "Invite"))
            {
                CallAppRequestAsFriendSelector();
            }

        }

    }

}

public string FeedToId = "";
public string FeedLink = "";
public string FeedLinkName = "";
public string FeedLinkCaption = "";
public string FeedLinkDescription = "";
public string FeedPicture = "";
public string FeedMediaSource = "";
public string FeedActionName = "";
public string FeedActionLink = "";
public string FeedReference = "";
public bool IncludeFeedProperties = false;
private Dictionary<string, string[]> FeedProperties = new Dictionary<string, string[]>();

private void CallFBFeed()
{
    Dictionary<string, string[]> feedProperties = null;
    if (IncludeFeedProperties)
    {
        feedProperties = FeedProperties;
    }
    FB.Feed(
        toId: FeedToId,
        link: FeedLink,
        linkName: FeedLinkName,
        linkCaption: FeedLinkCaption,
        linkDescription: FeedLinkDescription,
        picture: FeedPicture,
        mediaSource: FeedMediaSource,
        actionName: FeedActionName,
        actionLink: FeedActionLink,
        reference: FeedReference,
        properties: feedProperties,
        callback: LogCallback
        );
}

void LogCallback(FBResult response)
{
    var responseObject = Json.Deserialize(response.Text) as Dictionary<string, object>;
    object cancelled;
    if (responseObject.TryGetValue ("cancelled", out cancelled))
    {
        if( (bool)cancelled == true )
        {
            feedd.text = "not publish";
        }
        else
        {
            feedd.text = "publish";
        }
    }
    else
    {
        feedd.text = "publish";
    }
}

#region FB.AppRequest() Friend Selector

public string FriendSelectorTitle = "";
public string FriendSelectorMessage = "Derp";
public string FriendSelectorFilters = "[\"all\",\"app_users\",\"app_non_users\"]";
public string FriendSelectorData = "{}";
public string FriendSelectorExcludeIds = "";
public string FriendSelectorMax = "";

private void CallAppRequestAsFriendSelector()
{
    // If there's a Max Recipients specified, include it
    int? maxRecipients = null;
    if (FriendSelectorMax != "")
    {
        try
        {
            maxRecipients = Int32.Parse(FriendSelectorMax);
        }
        catch (Exception e)
        {
            //status = e.Message;
        }
    }

    // include the exclude ids
    string[] excludeIds = (FriendSelectorExcludeIds == "") ? null : FriendSelectorExcludeIds.Split(',');

    FB.AppRequest(
        FriendSelectorMessage,
        null,
        FriendSelectorFilters,
        excludeIds,
        maxRecipients,
        FriendSelectorData,
        FriendSelectorTitle,
        LogCallbackk
    );
}
#endregion  
void LogCallbackk(FBResult responsee)
{
    Debug.Log(responsee.Text);
}
}

Thanks for your help

Try this and consider those two lines I commented (they crash android too)

void Login(){
List<string> permissions = new List<string>();
        permissions.Add("public_profile");
       // permissions.Add("publish_actions");
     //   permissions.Add("user_friends");

        FB.LogInWithReadPermissions(permissions, AuthCallback);
}
void AuthCallback(IResult result)
{
        if (result.Error != null)
        {
            print(result.Error);
        }
        else
        {
            if (FB.IsLoggedIn) { print("Succes login."); }
            else { print("Failed login."); }
        }
        HandleLoginMenuFacebook(FB.IsLoggedIn);
}