Warning: Use of undefined constant ABSPATH - assumed 'ABSPATH' (this will throw an Error in a future version of PHP) in /var/www/wordpress/wp-includes/wp-diff.php on line 13

Warning: Use of undefined constant WPINC - assumed 'WPINC' (this will throw an Error in a future version of PHP) in /var/www/wordpress/wp-includes/wp-diff.php on line 13

Warning: require(ABSPATHWPINC/Text/Diff.php): failed to open stream: No such file or directory in /var/www/wordpress/wp-includes/wp-diff.php on line 13

Fatal error: require(): Failed opening required 'ABSPATHWPINC/Text/Diff.php' (include_path='.:/usr/local/lib/php') in /var/www/wordpress/wp-includes/wp-diff.php on line 13