I'm getting this error all of a sudden whenever I try and access my Drupal 5.x site: Fatal error: Call to undefined function drupal_alter()...followed by a path and module name.
I recently uploaded updated versions of the admin_menu and simple_menu modules, and ever since then I've been getting this error when trying to access my Drupal site.
Even worse, when I try and run update.php, I get a blank screen - so I can't even update or rollback my site!