Warning: require(/usr/local/www/wordpress/wp-includes/class-wp-exception.php): Failed to open stream: No such file or directory in /usr/local/www/wordpress/wp-settings.php on line 42

Fatal error: Uncaught Error: Failed opening required '/usr/local/www/wordpress/wp-includes/class-wp-exception.php' (include_path='.:/usr/local/share/pear') in /usr/local/www/wordpress/wp-settings.php:42 Stack trace: #0 /usr/local/www/wordpress/wp-config.php(126): require_once() #1 /usr/local/www/wordpress/wp-load.php(50): require_once('/usr/local/www/...') #2 /usr/local/www/wordpress/xmlrpc.php(31): require_once('/usr/local/www/...') #3 {main} thrown in /usr/local/www/wordpress/wp-settings.php on line 42