Fatal Error After WordPress 4 Update on With GoDaddy Hosting

When we tried to do an update to WordPress 4 on https://www.Flashpointinternational.com the plug ins were already updated and then I did the update. It came back to a white screen of death with the following code – Warning: require(/home/content/29/7905329/html/wp-includes/session.php) [function.require]: failed to open stream: No such file or directory in /home/content/29/7905329/html/wp-settings.php on line 122

Fatal error: require() [function.require]: Failed opening required ‘/home/content/29/7905329/html/wp-includes/session.php’ (include_path=’.:/usr/local/php5/lib/php’) in /home/content/29/7905329/html/wp-settings.php on line 122

I can’t figure out in GoDaddy webroot what I need to change to make it work again. I am not familiar with their hosting. Can anyone help? I can get to the wp-includes file but can’t get where there is a problem. Help Please!