author list not linking to correct page

To generate a link to the author’s page/archive on your website, use get_author_posts_url with the author’s user ID.

In your case:

<li class="clearfix"><?php echo get_avatar( $user->ID, '80' ) . '<a href="' . get_author_posts_url( $user->ID ) . '">' . $user->display_name . '</a>'; ?></li>

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