Warning: require_once(library.php): failed to open stream: No such file or directory in /home/djenworld/public_html/sitemap.php on line 2

Fatal error: require_once(): Failed opening required 'library.php' (include_path='.:/opt/cpanel/ea-php54/root/usr/share/pear') in /home/djenworld/public_html/sitemap.php on line 2