Dog-gone-it !
Sometimes a page is missing....
Go To Blogger >> Settings >> Search Preference. Now from the list of functions Select Custom Not Found Page and paste the following JavaScript coding in the HTML Box. If some folks are using custom 404 error message, than they can add the following code at the end of the coding.
Example::
Sorry for the inconvenience, the page you are looking for has no existence.
<script type = "text/javascript">
//Blogger 404 Redirect Powered by MyBloggerLab
BSPNF_redirect = setTimeout(function() {
location.pathname= "/"
}, 1000);
</script>