WordPress eMails not working

Check if youre WP can send out any emails to begin with : https://wordpress.org/plugins/check-email/ is a good one to try.

If you have trouble sending emails with the standard setup you could also try https://wordpress.org/plugins/wp-mail-smtp/#description and use Gmail or a 3rd party SMTP service to send email. This plugin also has fairly advanced debugging options to work out whats wrong with your setup.

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