Links to other hubbers is random based on the topic of your hub. There will be a list of related hubs automatically generated. Some will be to high ranking hubbers, some will be to low rated hubbers. There is no way to control those links.
If there's a link to another site and you didn't choose it, it's probably a Google related add. Do you have Google AdSense? Google ads are also randomly generated based on the topic of your hub and you can't control them. If it's one of those links which doesn't work, try to contact HP and explain the situation. I'm not sure if they can change the link or not. Hopefully, someone else who has been here a while can help more.