otissv

Thank you for the quick reply.

This is my first time using WordPress after this plugin and Page builder on YouTube.

I have installed WordPress on my local machine, along with Page builder and Visual Editor and the taken the following step.

1. Goto pages and edit page
2. Click on Page Builder
3. Add a widget and select Visual Editor
4. Edit Visual Editor

Then I only see the Tilte input and the error below:

Fatal error: Call to a member function do_items() on a non-object in /srv/www/wordpress-trunk/wp-includes/functions.wp-styles.php on line 64

screenshot

Black Studio TinyMCE : 4.2.2
Wordpress: 2.2.4
Theme: Twenty Fifteen
OS: linux
Browser: Chrome 43.0.2357.81 & Firefox Developer Edition 40.0a2 (2015-05-19)
website: localhost
Console errors: none

Installed plugings:
Akismet
Black Studio TinyMCE Widget
Hello Dolly
Page Builder by SiteOrigin