I've been working on a client website and found that there are broken links. I have fixed most of the links. Most of the broken links are generated from comments. So I fixed them. But still when I looked at Google Webmaster's crawl errors report, I found that there are some unknown links that are broken. Below is the sample link.
There is another broken link like
Google Webmaster Tools says that homepage is linked to the above link but that's not true. Not even a single link is linked to that pagination URL.
I'm unable to find this link, and I even checked this with Broken Link Checker WordPress plugin but unable to find any solution. Please tell me why this is being produced and how to fix it?
Also please tell me how much time it takes to update Google Webmaster's crawl errors report?