Whenever items on the page need to be rearranged, you can do this by reordering them in a template file with a child theme.
In this case, you’ll want to copy the content.php file from Tracks into your child theme. Then, in the content.php file in your child theme, locate lines 22-38. This contains the author-meta element.
Add a space after line 15 (a closing div tag), and cut and paste the author info there. Here’s how the file should look after the edit:
<div <?php post_class(); ?>>
<?php ct_tracks_featured_image(); ?>
<div class="entry-meta">
<?php get_template_part('content/post-meta'); ?>
</div>
<div class='entry-header'>
<h1 class='entry-title'><?php the_title(); ?></h1>
</div>
<div class="entry-container">
<div class="entry-content">
<article>
<?php the_content(); ?>
<?php wp_link_pages(array('before' => '<p class="singular-pagination">' . __('Pages:','tracks'), 'after' => '</p>', ) ); ?>
</article>
</div>
<?php
if(get_theme_mod('additional_options_author_meta_settings') != 'hide'){ ?>
<div class="author-meta">
<div class="author">
<?php echo get_avatar( get_the_author_meta( 'ID' ), 72, '', get_the_author() ); ?>
<span><?php
_e( 'Written by:', 'tracks');
the_author_posts_link();
?>
</span>
</div>
<div class="bio">
<p><?php the_author_meta( 'description' ); ?></p>
<?php get_template_part('content/author-social-icons'); ?>
</div>
</div>
<?php } ?>
<?php get_template_part('sidebar','after-post-content'); ?>
<div class='entry-meta-bottom'>
<?php get_template_part('content/further-reading'); ?>
<?php get_template_part('content/category-links'); ?>
<?php get_template_part('content/tag-links'); ?>
</div>
</div>
</div>