Yesterday I just checking my website’s cached version in Google and it’s showing me a 404 error. I was worried at one time. But after researching on it I found that this is just an error message from Google nothing serious.
This happens some times and we don’t need to worry about it. It wouldn’t affect your ranking and SEO. It’s just a message you can say.
If you think if there is some problem with your website. So you can check in Google Webmaster Tools. Basically cache errors doesn’t mean there are problems with your site or rankings.
Watch the video for more details https://youtu.be/3-yjOiYqlmk