Error 404 on https://domain/concrete/images

Received an email from google search console saying that there is a 404 error on the page"https://domain/concrete/images". I am not sure why google is trying to index such a page which obviously doesn’t exist. But where is the link?

@achrist is that domain in the sitemap or anywhere in your website?

What I have given as “domain” above is, so the full link that google is complaining about is
It is true that it doesn’t exist, and it shouldn’t. Question is what makes the google bot believe it should?

the /concrete/images folder indeed DOES exist. Google should not be attempting to index it though…

Yes, Google shouldn’t be attempting to index it. But you can do a disallow using robots.txt as well.