Done. You should receive an email showing your credentials.

Note that the site is in its "unbroken" state. That is, all the plugins have been deactivated. Then the Elementor plugin was reactivated. If you activate WPForo, you will break the site and you will not be able to edit https://www.aroundwoodstockvermont.com/community-forums/  

and, https://www.aroundwoodstockvermont.com/community-forums/ will display a page that does not correspond with the page in WP. That page does not contain the WPForo shortcode, yet it displays the forum.

Please keep me posted.

Thank you!

I appreciate all the suggestions from WPForo and various WPForo users, including Elementor support and many YouTube videos offering solutions to this problem. However, none worked for me. So rather than beat my head on the WP wall for another week, I decided to delete the offending page and re-create it. So far, the problem has not re-occurred. I'll be keeping my fingers crossed.