I had somebody send me a copy of this theme so I could figure out what the problem is.
Solution:
1. Delete the /lib/jquery-ui-1.8.10.custom.min.js file. You don’t need it.
2. In the theme’s functions.php file, at line 1910, change this line:
wp_enqueue_script('arjunaJQueryMinJS', get_template_directory_uri() .'/lib/jquery-ui-1.8.10.custom.min.js');
To this:
wp_enqueue_script('jquery-ui-draggable');
Explanation:
The jquery-ui-1.8.10.custom.min.js file is a combination of the jquery-ui-core, jquery-ui-widget, jquery-ui-mouse, and jquery-ui-draggable sections of the jQuery UI package.
WordPress includes the correct copies of jQuery-UI built right in. So by enqueuing the jquery-ui-draggable that is already built into WordPress, it will include the same jQuery-UI components that the custom file had automatically. Except WordPress has the correct versions of the components to work with the newer jQuery that is also included in WordPress itself.
I tested this fix on a local copy of the “Arjuna X” theme and found no issues.