Data-binding not working Xamarin Forms

I am updating a Xamarin App it is working perfectly on the iOS simulator but Not working on iOS devices. I am able to deploy on iOS devices.

When I am filling in the fields it's not being set to the model all parameters are empty. Image paths are Null, Constant variables are null. On the simulator data binding is working.

I have uploaded the relative code on the GitHub link https://github.com/omshergill/MobileApp

using System;using System.Collections.Generic;using System.ComponentModel;using System.Text;using System.Threading.Tasks;using VolMobile.AppData.Interfaces;using VolMobile.AppData.SQL;using Xamarin.Essentials;using Xamarin.Forms;
namespace VolMobile.Pages.AuthenticationPages.Login{
    public class LoginPageViewModel : INotifyPropertyChanged    {        //private static ILogger logger = DependencyService.Get<ILogManager>().GetLog();
        public LoginPageViewModel()        {
        }
        public void Load()        {            //RememberMe = DeviceStorage.RememberMe;            //if (DeviceStorage.RememberMe == true)            //{            //UserName = DeviceStorage.UsersName; //+AppData.AppData.Alpha_Beta_Version -->adding extra @beta/alpha to name on log in.            //}            IsLoading = false;        }
        #region Properties

        public string AppVersion        {            get            {                return "v." + AppInfo.VersionString;            }        }

        string _UserName = string.Empty;        public string UserName        {            get            {                return _UserName;            }            set            {                _UserName = value;                OnPropertyChanged(nameof(UserName));            }        }
        string _Password = string.Empty;        public string Password        {            get            {                return _Password;            }            set            {                _Password = value;                OnPropertyChanged(nameof(Password));            }        }
        private bool _RememberMe = false;        public bool RememberMe        {            get            {                return _RememberMe;            }            set            {                _RememberMe = value;                OnPropertyChanged(nameof(RememberMe));            }        }

        private bool _IsLoading = true;        public bool IsLoading        {            get            {                return _IsLoading;            }            set            {                _IsLoading = value;                OnPropertyChanged(nameof(IsLoading));            }        }
        #endregion

        public async Task Login()        {
            IsLoading = true;
            var userNameStripped = HttpCalls.ApiFunctions.SetServerURI(UserName);            try            {                await App.AppState.AppControllers.tokenController.GetAuthorizationToken(userNameStripped, Password);            }            catch (Exception ex)            {                Console.WriteLine(ex.Message);
            }
            if (App.AppState.AppSettings.loggedIn)            {                //Run the Post login Initialization of Controllers                try                {                    await App.AppState.Initialize_PostLogin();                }                catch (Exception ex)                {                    //logger.Error(App.LogPrefix() + "Init_PostLogin error: " + ex.Message);                    Console.WriteLine(App.LogPrefix() + "Init_PostLogin error: " + ex.Message);
                }
                //Proceed to dashboard               // Device.BeginInvokeOnMainThread(() =>                //{                    try                    {
                        App.Current.MainPage = new Navigation.Navigation(new Dashboard.DashboardPage());                    }                    catch (Exception ex)                    {                        //logger.Error(App.LogPrefix() + "Error opening Navigation Page: " + ex.Message);                    Console.WriteLine(App.LogPrefix() + "Error opening Navigation Page: " + ex.Message);                        this.IsLoading = false;                    }
                //});
            }            else            {                this.IsLoading = false;            }
        }



        //Property change event, used to update data bound objects in the UI        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propName)        {            System.Diagnostics.Debug.WriteLine("Before");            var handler = this.PropertyChanged;            if (handler == null)            {                return;            }
            System.Diagnostics.Debug.WriteLine("Fired");            handler(this,                new PropertyChangedEventArgs(propName));        }
    }}