Log into Moodle with admin account Go to Site administration and click the "Blocks editing on" button. The Admin Bookmarks block should appear either on the bottom left (clean) or right (boost) In the Admin bookmarks block, do Cog → "Configure Admin bookmarks block" and set "Display on page types" to "Any site administration page" and save changes. Visit a category page in the admin settings, e.g. /admin/category.php?category=analytics (see screenshot) Click on "Bookmark this page" in the admin bookmarks block Confirm that the link to the category is added as a bookmark to the admin bookmarks block. Click on the link that was just added and confirm that you are redirected to the page bookmarked. Click on the "Unbookmark this page" link in the admin bookmarks block. Confirm that the link is removed from the block and there is no error.