Thanks, I thought that might be the case too, although their website is not as clear as it might be.
I'm signed up for Worcestershire CC library service, and have a card but the online newspaper access doesn't appear to work, consistently refusing my card number. (I've successfully logged in to the Citizens Advice service via it, so my card must be valid. And tried several web browsers - I'm not a novice.)
I don't expect online library help here, but if you do have any hints, great!