404. That’s an error.
The requested URL /add?source=atgs&feedurl=http%3A//www.pantellerialink.com/rss_pantellerialink_it.xml was not found on this server. That’s all we know.
/add?source=atgs&feedurl=http%3A//www.pantellerialink.com/rss_pantellerialink_it.xml