Public and Private keys incorrect for user

So I contacted DigitalOcean who told me to do the following which solved my issue:

We recommend removing the changes you made to
wp-config.php to start. Once done, please try issuing this command:
sudo chown -R www-data:www-data wordpress

Just change ‘wordpress’ to the directory of WordPress installation,
and see if that works to waive the FTP credential requirement. 🙂

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