Multisite installation not in root – how to make live?

That’s an error with your database credentials, as stored in wp-config.php . Check/fix those credentials to let WP access the database. (As the googles would tell you if you searched on the error message….)

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