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Hey Alberto, If those 44 posts are set to "private" how is Moz finding them? Somewhere in your blog you are linking to them. Find those links and take them down. Then you should consider 2 things: Do those pages get any organic traffic? If yes, try to create a page that isn't a copy, with unique and useful content and set it as public. If there's no organic traffic, then just leave the 404 and just make sure your 404 is a nicely designed 404 that offers some value to the user. Not only for these 44 pages, but to cover any 404 issue in the future too. You could, for example, check the URL requested and search our site for related content and while saying that the page they were looking for is missing/removed, you suggest looking those other pages. Hope that helps!