1. I updated from 1.9 (latest version) to 2.0.
2. The error seems to be happening with Paid Memberships Pro. The PMPro integration has been problematic and I have support requests in with them, but think it might be time to look for another solution to both lock down content and create a paid forum. (any suggestions on that front are welcome, too)
And, by the way, that table ‘does’ exist, I just checked through phpMyAdmin. It looks like that table is just for actual Groups members, not the whole userbase for the installation.
