Unyson

Just added the update to unyson-running woffice and buddypress…cannot login as admin to my site.
This is the error message
[Wed Nov 18 17:05:51 2015] [error] [client 10.254.4.5] PHP Fatal error: Class ‘Page_Builder_Item’ not found in /var/www/html/wp-content/plugins/unyson/framework/extensions/shortcodes/shortcodes/column/includes/page-builder-column-item/class-page-builder-column-item.php on line 5, referer: https://www.rummelintranet.com/login-2/

I can open my intranet site as a user but cannot login as wp/admin.
Please advise.
Thank you!
Anita

https://ww.wp.xz.cn/plugins/unyson/