Notice : Undefined variable: userdata

Error

Notice : Undefined variable: userdata in .../wp-content/themes/SO9/_software/widgets/widget-sidebar-links.php on line 25

The Problem

Reference to the $userdata variable is missing in the widget-sidebar-links.php file.

The Phix

Replace line #14:
global $post;
With:
global $post, $userdata;
Affected Version: 9.2.7
Affected Theme(s): Digital Download Theme
Affected File(s): _software/widgets/widget-sidebar-links.php