I upgraded my WordPress on all of my sites and each one was fine except one. I received the evil "We need to update your database" error. Now I cannot get into my wp-admin panel, but people have been able to leave comments, etc.
Could someone please tell me what this means and what I need to do to fix my site? I know a little about pho, but am not a programmer, so please keep that in mind.
[14-Sep-2012 05:06:53] WordPress database error Duplicate key name 'type_status_date' for query ALTER TABLE wp_posts ADD KEY type_status_date (post_type,post_status,post_date,ID) made by wp_upgrade, make_db_current_silent, dbDelta