Ultimate Branding update error

After updating the Ultimate Branding plugin I can no longer access my site. I get the following error:
Fatal error: Access level to UB_Blog_Favicons::get_sortable_columns() must be public (as in class WP_List_Table) in /home/dfgc2012/public_html/dfgc/wp-content/plugins/ultimate-branding/ultimate-branding-files/modules/favicons/UB_Blog_Favicons.php on line 10

Please help .

WP 3.8.6