One thing I did.  I originally had the Forum located dianedandeneau.com/forum.  I then moved it to: dianedandeneau.com/pages/forum

Now it is under dianedandeneau.com/blog-home/forum

I bet this caused the issue.  I can’t have the application in the root.  Do I need to reinstall? 

In theory it shouldn’t make any difference but it is worth a try. Update the forum permalink after any change though.