please tell me how to use

[78182648]

ErrorException [ Recoverable Error ]: Argument 1 passed to Breadcrumbs::add() must be an array, object given, called in D:\wamp\www\cheersphp\application\classes\controller\admin\category.php on line 12 and defined

[tapvt]

What object are you passing in to add() on line 12 of Controller_Admin_Category?

You should be passing an array like this: Breadcrumbs::add(array('Title', 'url/for/the/crumb');

The docblock in classes/breadcrumbs.php, around line 55, tells you everything you need to know to use the add() method.