Find bugs in nopCommerce 4.30 BETA and earn $10

//get rates for saturday delivery
if (_upsSettings.SaturdayDeliveryEnabled)
{
    var (saturdayShippingOptions, saturdayError) = GetShippingOptions(shippingOptionRequest, true);
    foreach (var shippingOption in saturdayShippingOptions)
    {
        response.ShippingOptions.Add(shippingOption);
    }
    if (!string.IsNullOrEmpty(error))
        response.Errors.Add(error);
}

ELSE IF @OrderBy = 0 /* default sorting, 0 (position) */
    SET @sql_orderby = ' p.[DisplayOrder] ASC'

var query = from pc in _productCategoryRepository.Table
                        join p in _productRepository.Table on pc.ProductId equals p.Id
                        where pc.CategoryId == categoryId &&
                              !p.Deleted &&
                              (showHidden || p.Published)
                        orderby p.DisplayOrder
                        select pc;

var query = from pc in _productCategoryRepository.Table
                        join p in _productRepository.Table on pc.ProductId equals p.Id
                        where pc.CategoryId == categoryId &&
                              !p.Deleted &&
                              (showHidden || p.Published)
                        orderby pc.Id, pc.DisplayOrder
                        select pc;