What are URL errors in Google Search Console?

Question

Marketing

Hello) I have a question. I have a blog on Wordpress, I recently made and launched it, I wrote in robots:
Disallow: /attachment
Disallow: */attachment
Disallow: */*/attachment
Disallow: /?attachment_id=*
Redirect pages from attachments to the article itself (301 redirect ) did, but here in the Google Search Console from time to time such
urls appear in the "Crawl Errors
"
: skachat-video-s-youtube-android/youtube-3/
Do they somehow affect the site itself and SEO? A week ago I removed about 20 pieces, now they have appeared again. What to do?

Answer 1

1) Why redirect attachments (are these files?) to an article if you removed them from indexing?
2) Any mistakes can have an impact on SEO.
3) You didn’t specify error codes, I can assume that links exist first at one address, then the address changes and Google writes an error that it cannot find the page, in this case a redirect would be appropriate, or immediately publish the page at the desired address and don't move it, or the engine should be able to redirect from the old address.