Deprecated Call

I’m using WordPress 3.5

I’m getting multiple instances of the following deprecated call error:

Function: unregister_sidebar_widget()
Used in wp-content/plugins/widget-context/widget-context.php on line 160.

Use wp_unregister_sidebar_widget() instead.
Deprecated in version 2.8.

http://ww.wp.xz.cn/extend/plugins/widget-context/