I need to update my old WP version from 2.8 to 3.4.
When updating automatically i get maintenance notice first, and then an error.
When updating manually i also get the same error.
Fatal error: require() [function.require]: Failed opening required '/wp-includes/classes.php' (include_path='.:/usr/local/zend/share/pear') in /wp-settings.php on line 68
Can someone plz help?