Error when I use the Login Widget

When I added the login widget and checked my homepage in a new tab I got the following error message:

Fatal error: Call to undefined function do_shortcde() in /home/leetnews/public_html/wp-content/plugins/membership/membershipincludes/addons/login.widget.php on line 42

How can I fix the error so that I can use the widget, or is a bug that I've found with the plugin?