Warning: require(//wp-includes/classes.php): failed to open stream: No such file or directory in /wp-settings.php on line 68

Warning: require(//wp-includes/classes.php): failed to open stream: No such file or directory in /wp-settings.php on line 68

Fatal error: require(): Failed opening required '//wp-includes/classes.php' (include_path='.:/usr/share/php:/usr/share/pear') in /wp-settings.php on line 68