Hi all.
Our WP installation at KJSR.net has been running fine for a year now, but all of a sudden, whenever I try to activate/deactivate a plugin, I get this:
Fatal error: Cannot redeclare maybe_create_table() in /home/kjsrnet/public_html/wp-admin/includes/upgrade.php on line 999
Nothing has changed on the site for at least a week, and this just started happening last night.
Any ideas on how to fix it?