I had the
Warning: scandir(/home/content/82/5919282/html/travelagentrevolution/wp-content/themes/Aggregate) [function.scandir]: failed to open dir: Permission denied in /home/content/82/5919282/html/travelagentrevolution/wp-includes/class-wp-theme.php on line 980
after installing wpbb plugin
the way I fixed it was going to the wp-content/themes and setting the permissions on twentyeleven to user read
