private async void Authorisation()
        {
            await PopupNavigation.PushAsync(new LoadPage(), true);

            string description = null;
            int    stateAuth   = managerVazoo.A_RWork("authorisation", ref description, idCompany, Username, password);
            await PopupNavigation.PopAllAsync();

            if (stateAuth == 3)
            {
                CheckAuth.SavingAccount(IdCompany, Username, Password);
                Application.Current.MainPage = new MenuDetalePage();
            }
            else if (stateAuth == 2)
            {
                await PopupNavigation.PushAsync(new Error("Invalid login or password, please try again"), true);
            }
            else if (stateAuth == 1)
            {
                await PopupNavigation.PushAsync(new Error("No network"), true);
            }
            else if (stateAuth == 4)
            {
                await PopupNavigation.PushAsync(new Error("Technical works on the server"), true);
            }
        }