I am getting this error:
Fatal error: Call to undefined method WP_Screen::get_columns() in /data/21/2/50/119/2539934/user/2783371/htdocs/wp-content/plugins/visual-form-builder-pro/includes/admin-form-creator.php on line 55
I have updated my WordPress to 3.5.1
I am not sure where to go from here
