Hi BHWer I have a website, with Wordpress CMS. I don't understand why when Google crawl my site and have 4 "Not found" errors. You can see screenshot below. That urls I was posted it before and trash it, but google still crawl and give Not found errors. Please tell me how to avoid this, because i think if have not found errors while crawl, that will effect to SEO result. Thank you very much.