wordpress multisite config issue needs help

You need to change define('SUBDOMAIN_INSTALL', true); to define('SUBDOMAIN_INSTALL', false); to start with. Maybe you need to modify you .htaccess file as well.

For more info the WordPress codex has a lot of info: https://codex.wordpress.org/Multisite_Network_Administration

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