Wondering why I can’t get into Slate Plus – Slate.com Review

I believe I paid to become a member of Slate Plud some time ago. I get a lot of things from Slate via email, but it seems that whenever I start an article it stops midway through and says I have to join or sign in to read the whole thing. I thought I had the sign-in set up on my phone, but it doesn’t seem to work. I like Slate but find this very tedious.
Review by 60sgal on Slate.com.