Can you check your exp_extensions table to make sure there are 8 rows in there with “Publisher_navee_ext” in the class column. You should see rows for each of these:

['hook'=>'core_boot', 'method'=>'core_boot'],
            ['hook'=>'navee_extra_form_sections', 'method'=>'navee_extra_form_sections'],
            ['hook'=>'navee_update_navigation_item', 'method'=>'navee_update_navigation_item'],
            ['hook'=>'navee_modify_nav', 'method'=>'navee_modify_nav'],
            ['hook'=>'navee_get_cache', 'method'=>'navee_get_cache'],
            ['hook'=>'navee_set_cache', 'method'=>'navee_set_cache'],
            ['hook'=>'navee_strip_link', 'method'=>'navee_strip_link'],
            ['hook'=>'navee_modify_crumb', 'method'=>'navee_modify_crumb']

This is a little puzzling because I haven’t had to update the NavEE support extension for nearly 2 years, and I know other people are using it.