invalid values for Integer in page param for pagination

ActionView::Template::Error (invalid value for Integer(): "shop/cart"):
     7:
     8: - if may_show_profile?
     9:
    10:   - @pages = Page.paginate_by_path('/descending/updated_at/limit/30/', options_for_user(@user), pagination_params)
    11:
    12:   %h2.p.first= :recent_pages.t
    13:   .without_owner
  vendor/crabgrass_plugins/crabgrass_path_finder/lib/path_finder/mysql/query.rb:110:in `paginate'
  vendor/crabgrass_plugins/crabgrass_path_finder/lib/path_finder/find_by_path.rb:21:in `paginate_by_path'
  app/views/person/home/show.html.haml:10:in `_app_views_person_home_show_html_haml___3338880789894726909_62850420'
  app/controllers/common/application/before_filters.rb:6:in `render'
  app/controllers/dispatch_controller.rb:14:in `dispatch'