Extra Pages-info box w/admin 4.6.1 problem

[Guest]

I have just installed Extra pages-info box w/ admin 4.6.1 on Oscommerce 2.2rc2a

I am using apache 2.2.8 PHP 5.2.6

 

I get the following error when i try to access the page manager in Admin

 

Fatal error: Call to a member function add() on a non-object in C:\wamp\www\catalog\admin\extra_info_pages.php on line 39

 

below is the line 39

 

$breadcrumb->add($page_check[pages_title], tep_href_link('info_pages.php?pages_id=' . $infopageid));

 

Hope someone can help.

 

Nick