I was deleting my trash files. I would select Trash in the Posts section, then select the Empty Trash button. Apparently WP will only delete 100 or so at a time (I had about 800 deleted posts). After each deletion the blog would redirect to the Home page. I would select site admin, go back to posts, trash, then select Empty Trash again. The third time I did this, the whole blog crashed. Now, mo matter what I type into the url address box, the blog always redirects to a WP install page asking me the name of the blog, my email, etc.
The blog is http://yourproductsearch.com.
Anyone have any insights on this?