An error occured while attaching module (Dynamicweb.Frontend.Content)

System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at System.Array.Clear(Array array, Int32 index, Int32 length)
   at System.Collections.ArrayList.Clear()
   at Dynamicweb.Frontend.LegacyModules.RSSFeed.RssObject..ctor(Properties& initProp, PageView pageview)
   at Dynamicweb.Frontend.LegacyModules.RSSFeed.Frontend.LoadRss(String fileRssUrl, PageView pageview, String paragraphID)
   at Dynamicweb.Frontend.LegacyModules.RSSFeed.Frontend.RSSFeed(DataRow ParagraphRow, PageView& Pageview)
   at Dynamicweb.Modules.News.Frontend.RSSRenderer.Output()
   at Dynamicweb.Modules.News.Frontend.NewsList.Output()
   at Dynamicweb.Modules.News.Frontend.Output.GetContent()
   at Dynamicweb.Frontend.Content.GetModule(DataRow& ParagraphRow)