Upgraded to WP 3.4.2 and parent page errors

I upgraded the site I am working on to 3.4.2 from 2.8.6 and all the parent pages get an error after the page title:

Warning: Illegal offset type in isset or empty in /home/content/t/a/f/…/html/wp-includes/capabilities.php on line 209

Warning: Illegal offset type in isset or empty in /home/content/t/a/f/…/html/wp-includes/capabilities.php on line 209

Warning: Illegal offset type in isset or empty in /home/content/t/a/f/…/html/wp-includes/capabilities.php on line 209

I knew there would be some issues with a theme developed for < WP 3.0.

Any help would be appreciated.

Ex.: http://trumpetfoundation.org/about