Force 404 redirect to home?

A 404 should never be a redirect. A redirection status begins with 3, not with 4.

You can either include the index.php (or home.php or front-page.php) in your 404.php or just remove the 404.php from your theme. Then WordPress will use the index.php.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)