Page not found on home page

I have updated drupal through run update.php.After that i can see everything on the website except than HOME page.Speed is also slow.
Please help me out.

If you mean to run it as, you should go to the DH panel for Manage Domains and have it remove ‘www’ from the URL. Perhaps Drupal is getting confused with your site adding ‘www’ to the front.

If you mean to run it as, you may have to configure Drupal so it thinks your domain has the ‘www’ in front.