Debugging Session

I enabled wp-debug on my site. This is the notice returned on the Dashboard.

Strict Standards: Declaration of PageNavi_Options_Page::validate() should be compatible with scbAdminPage::validate($new_data, $old_data) in /htdocs/domains/my-domain/wp-content/plugins/wp-pagenavi/admin.php on line 156

Thanks.

http://wordpress.org/plugins/wp-pagenavi/