There are several reasons you may suffer from webmaster errors, 404 pages not found. However, the most vital thing is how you fix them?
If you have too many errors pages your website then your viewers will really suffer from the bad experience and the SEO may recognize you as well. There are some processes to check for broken links or error pages.
Quite than make a temporary fix, it is well to fix them for permanently and Google Webmaster Tools delivers one of the best results. You will need to have created an account with Google Webmaster Tools before we can continue.
Login to your Webmaster Tools accounts and direct to not found the page. You will now reach a page listing each your 404 Page Not Found URL’s of which only some actually so do not worry. On the other page showing the link from URL’s, you can just click on the URL’s, find the link to the 404 page and either remove it or change it to the accurate URL.