Warning: require(//wp-includes/cron.php): failed to open stream: No such file or directory in /wp-settings.php on line 190

Warning: require(//wp-includes/cron.php): failed to open stream: No such file or directory in /wp-settings.php on line 190

Fatal error: require(): Failed opening required '//wp-includes/cron.php' (include_path='.:/:/usr/local/php56/lib/pear') in /wp-settings.php on line 190