Authors link in blog not working

i noticed that in some pages of the blog (archive and tag) the link to the author’s posts lead to nothing, in the template the error is that we have

?php echo esc_attr(get_the_author()); ?>" data-toggle="tooltip" href="#">

where href=”#” is wrong, it should be:

href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>"><?php echo esc_attr(get_the_author()); ?></a> &nbsp;