Results still being seen for old deleted content

[Studio33]

Hi,

Our site has a blog.  We had "Categories" and "Tags" in our blog.  This caused SEO chaos with Duplicate content and 404 Errors.

We removed all the Categories and Tags about a month ago.

Why would these issues still be showing up on Moz as errors on our Crawl Diagnostics page?  Do we need to do some thing else other than just remove them from our blog.

Thanks

[ToughTimesLawyer]

I'm not sure what you mean by "removed them from your blog," since most blogs have categories and tags to help with internal navigation and organization.

It may be that they are still in your sitemap; so check your sitemap.  The other issue is time.  It takes awhile for spiders to catch-up with your site.