bbPress.org

I have the exact same problem. I’ve struggled to find anyone else in my situation. It’s a clean installation of wordpress, and bbpress is the only plugin installed, NOTHING else is done at all. I’ve tried different themes (like twentyfifteen), but that doesn’t seem to be the troublemaker. I’m allowed to make a new forum, but the “all forums” page results in this error. I’m running it on a localhost mamp server.