Oauth has changed

The plug-in has been working fine. Now it’s giving authentication errors.

[Error: Missing access credentials. See https://developer.foursquare.com/docs/oauth.html for details.]

I have client IDs and secrets in there. I have noticed that the link on the plugin to get Oauth is broken. When I applied for a new one, Foursquare asked for more information on the app. Even the new ID and secret didn’t work.

https://www.ads-software.com/extend/plugins/foursquare-venue/