Categories not defaulting to Protected Content Message

Posts and Pages are automatically redirected to the Protected Content page, but categories are not being redirected , so it shows up as a blank page http://thevoiceofchange.info/category/legal/laws/

http://thevoiceofchange.info/laws-pertaining-proceeds-payouts/

This is very confusing for the visitor who assumes there is no content, they should see this is protected content also, or a list of post, with protected content over it.

Is there a way to fix this I hope, please?

https://wordpress.org/plugins/membership/