sharepoint 2013,RSS viewer web part error

In SharePoint 2013,i added the web part for RSS viewer in my homepage in my development server and gave the link http://www.channelnewsasia.com/rss/latest_cna_frontpage_rss.xml. encountered an error “An unexpected error occurred processing your request, check the logs and correct the problem.

I checked the logs at C:\Program Files\Common Files\Microsoft shared\Web Server Extensions\LOGS with the ULS viewer. didnot understood the advise me how to resolve.