Beaver Builder - author box

// Author profile box
// Thanks Justin Busa and Viktor http://forum.wpbeaverbuilder.com/support/q/author-bio-box/
function my_author_bio($content) {
if ( is_singular('post') ) {
    ob_start(); ?>
    <div class="fl-author-bio clearfix media well">
        <div class="fl-author-bio-thumb media-left">
            <img src="<?php echo get_avatar_url( get_the_author_meta('ID'), 96 ); ?>" alt="<?php the_author(); ?>" class="media-object" />
        </div>
        <div class="fl-author-bio-text media-body">
            <p class="media-heading"><?php the_author_posts_link(); ?></p>
            <p><?php echo get_the_author_meta( 'user_description' ); ?></p>
        </div>
    </div>
<?php
$authorbox = ob_get_contents();
ob_end_clean();
return $content.$authorbox; } 
    else { 
        return $content; 
    }
}
add_filter( 'the_content', 'my_author_bio' );