–SOLVED 1/17/24 I created a single site https://vayhub.org/test/ and installed BP on it. After activating and turning BP-> Options’ Invite & Register on, the https://vayhub.org/test/register still won’t work, although it created the pages Activate, Activity, Members, and Register on the menu bar. But none of them worked when I clicked on them, except for Members. Then it dawned on me that I would need to test it without logging in! (I was working on the site as Admin). After using another computer to view the site, everything works!
