Fatal error after update

Replies: 0

I tried updating to the latest version today and I now get this error and cannot enter the back-end of my site. I have already tried disabling plugins like other forum posts suggest, it did not help.

http://urbtech.org/

Warning: require(/home/rosspearce26/public_html/wp-includes/class-wp-list-util.php): failed to open stream: No such file or directory in /home/rosspearce26/public_html/wp-settings.php on line 97

Fatal error: require(): Failed opening required ‘/home/rosspearce26/public_html/wp-includes/class-wp-list-util.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/rosspearce26/public_html/wp-settings.php on line 97