I did: =============
Before this all happened. I did add several new plugins and activated some of them. But I did not add any to my blog.
In the Admin Site, theme selector:
I had clicked on the notepad-chaos theme to see it before activating it. It did not "pre-view" but I activated it anyway. I then viewed my site. Everything looked great. I then clicked on green-mile. The same thing happened, it did not "pre-view" but I activated it anyway.
I saw: =============
I then tried to viewed my site. I got this on my site: http://casaresfamily.org/weblog/.
Fatal error: Cannot redeclare pagenavi_init() (previously declared in /home/content/c/a/s/casaresfamily/html/weblog/wp-content/plugins/wp-pagenavi/wp-pagenavi.php:176) in /home/content/c/a/s/casaresfamily/html/weblog/wp-content/themes/green-mile/functions.php on line 97
I expected: ========
I did not see the green-mile theme. I also can no longer login-in or see my blog.