Thanks, Thomas. No, it’s not an issue with the roles. I did create new Instructor profiles as users, but the plug-in isn’t finding them when I click on the instructor drop-down menu.
Maybe stjennifer knows more about programming and coding than me (which is pretty much zero) & can help. Everything after your 1st para is completely greek to me (I only know Ajax was a greek hero — LOL). I have no idea how to open wp-config.php, or where I’d even begin to do this. This is a really unfortunate thing, because I only downloaded the plug-in, gave the course a name, then tried to put in the instructor, and ran into this buzzsaw. I know you guys put a LOT of effort into even the free version, but if other users run into this in the 1st 5-10 mins like I did, they will run away!