404. That’s an error.
The requested URL /add?feedurl=http://newsgroups.derkeiler.com/Archive/Rec/rec.games.video.arcade.collecting/rss.xml was not found on this server. That’s all we know.
/add?feedurl=http://newsgroups.derkeiler.com/Archive/Rec/rec.games.video.arcade.collecting/rss.xml