public IActionResult Index()
        {
            var viewModel = new HomeIndexViewModel();

            try
            {
                throw new Exception();

                var customers = _customerApplicationService.GetAllCustomers();
                viewModel.Customers = customers.Select(DataViewModelMapper.Map).ToList();
            }
            catch (BusinessException bex)
            {
                TreatHandledException(bex, viewModel);
            }
            catch (Exception ex)
            {
                TreatUnhandledException(ex, viewModel);
            }

            return(View(viewModel));
        }