I’ve worked it out. I added parallax_scroll to the funtions.php of the theme I use. I added it in this line:
add_theme_support( ‘post-thumbnails’ , array( ‘post’ , ‘page’ , ‘portfolio’ , ‘product’, ‘parallax_scroll’));
Search for post-thumbnails in functions.php.
Gabe
Hi, I am using Maintenance 1.2.1 on WP 3.5.1. Still got the same error message on several WordPress sites. Even with the standard Twenty Twelve theme on a clean install.
The plugin functions well, but I the error spoils the fun a bit… Can you please look in to it? Thanks!