"Invalid links generating traffic" page shows 110 invalid links, yet the Affiliation status on most of them is Active, and the links seem to work when you click on them in the report. There is no information about when the link was recorded as invalid, so I don't know if this info was from months ago or more recently. What can I tell from this info? Does it mean that the advertiser briefly went inactive thus racking up a lot of temporarily invalid links for me?
Either that or when you deleted the link to your website you once submitted to CJ those links that you generated using that website become invalid. More likely they have just expired. You will have to generate them again and change it throughout your website(s).
You can search for the link number within the Get Links search interface (choose Links from the dropdown menu). Search for the AID (link number) & then view the link detail page. If nothing shows up, or the link says that it is expired, then those links have been deleted by the advertiser and you should swap them for other links.
Advertisers who are deactivated for sometime will show as active in status that means your membership is active, but the advertiser has stopped the affiliate program for time being. so if any of your link sends traffic to that advertiser site it will show as invalid. If any advertiser is expired or ended its affiliate program then also traffic sent will be shown as invalid.