How can I fix broken visual editor after updating to WordPress 3.6?
If you download the latest version of the theme replace the file at functions/recommend-plugins.php with the version currently in your theme.
Then go to your plugins and delete the Symple Shortcodes.
After deleting you should see a pop-up to re-install the plugin and this will download the latest version from my Amazon S3 account.
Make sure you clear your cache after updating and your issue should be resolved, yay!