wpforo doesn't have ANYTHING to do with registration/login/email out, all those are handled by Wordpress.

Bots/attacks also have nothing to do with wpForo, find and install a protection plugin for Wordpress.

Also try to post a correct TOPIC title, "help" doesn't mean anything. And many of us scan the forums by Titles and your topics may be ignored.

Read this as well: https://wpforo.com/community/faq/how-to-stop-spam/