UPDATE: All seems well again. Thanks to everybody for their help!
I have been having a hell of a time trying to upgrade.
Everything now seems OK, except that I can’t see my other pages (Resume, Services, etc.). I can see them in the database and on the wp-admin Manage -> Pages. But they don’t show up on screen.
I tried creating a new page called “Test” and that doesn’t show either.
If you go directly to https://www.wmbriggs.com/blog/resume/ then you can see the resume page, but it doesn’t show on the top row of tags.
I have double-checked the database privileges and all seems well there.
Anybody have any ideas?