If you have enabled password protection for your website, Sitemapper won't be able to scan your site. However, you do have a couple of options:

  1. Temporarily disable password protection and then use Sitemapper to scan your website. Once you're done creating your sitemap, turn your password protection back on.
  2. Build a sitemap of a website stored locally on your computer. For more information about how to do this, read How Do I Build a Sitemap of an Unpublished Website?