Passing Data throught database

I'm trying to pass the data to another activity, the data is from database. And I'm having an error, and IDK why, can someone explain it to me?

This is how i Put the Extra:

private void Log_Click(object sender, System.EventArgs e)
{
try
{
string dpPath = Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "Person.db");
var db = new SQLiteConnection(dpPath);
var data = db.Table();

            var data1 = data.Where(x => x.username == txtUser.Text && x.password == txtPass.Text).FirstOrDefault();

            if (data1 != null)
            {
                Intent openAct = new Intent(this, typeof(personAccount));
                this.StartActivity(openAct);
                openAct.PutExtra("info", JsonConvert.SerializeObject(information));
            }
            else
            {
                Toast.MakeText(this, "Username or Password invalid", ToastLength.Short).Show();
            }
        }
        catch (Exception ex)
        {
            Toast.MakeText(this, ex.ToString(), ToastLength.Long).Show();
        }
    }

This is how i get the extra:

IdQR = FindViewById(Resource.Id.QRCode);
LogedPerson = JsonConvert.DeserializeObject(Intent.GetStringExtra("info"));
IdQR.Text = LogedPerson.id.ToString();

This is my class:

public class info
{

    [PrimaryKey, AutoIncrement, Column("_Id")]
    public int id { get; set; }
    [MaxLength(25)]
    public string username { get; set; }
    [MaxLength(15)]
    public string password { get; set; }
    public byte [] image { get; set; }
}

I followed this tutorial

But his data is Json and he serialize it, I guess that part is the reason why I'm having an error.

Thanks in advance