Administration Structure to list menu items fails to display When I access admin/structure/menu/manage/main-menu this should show a list of all of the menu items and enable re-ordering, enabling, etc. This has stopped working and will only display the top level menu (without styles) and sometime just a blank page.

I think it is related to the number of menu items I have. Checking the database for menu_links shows almost 500 entries. Is there a way around this?

Possibly I need to think differently. I am not actually displaying all of the items on the user menu just the top two levels. But by adding node and hiding them I get the breadcrumbs for 'free'. Is there a better way to handle the breadcrumbs that would enable me to remove excess items from the menus?

Thanks in advance
Andrew W.
If you want to modify only breadcrumb, then you can use one of below module.

custom breadcrumbs:


  Allows administrators to set up parametrized breadcrumb trails for any
  node type, Views, Panels, Taxonomy vocabularies and terms, paths . This allows node types to have "Home > User
  Blog > 2005 > January" style breadcrumbs on the node view page
  itself, synchronizing cleanly with custom views or pathauto aliases.
  Breadcrumb visibility can be customized via a php snippet.


path breadcrumbs


  Path Breadcrumbs module helps you to create breadcrumbs for any page
  with any selection rules and load any entity from the URL!