SyndicationFeed RSS Reader pubDate: error was encountered when parsing a datetime value

I'm developing simple C# application which will present rss feeds. I have problem reading rss feeds from some web pages. The problem comes when parsing pubDate: Error in line 1 position 829. An error was encountered when parsing a DateTime value in the XML.

        XmlReader reader = XmlReader.Create("http://vest.com.mk/rssGenerator/");        SyndicationFeed feed = SyndicationFeed.Load(reader);        foreach (var item in feed.Items)        {            Console.WriteLine(item.Title.Text);            Console.WriteLine(item.Id.ToString());            Console.WriteLine(item.PublishDate.ToString("dd/MM/yyyy"));            Console.WriteLine();        }