Need help with my attachment page.

My team is Tortuga Pro, but the attachment page (singel.php) dos not have caption underneath the picture.

So I copied the attachment page from the team Twenty Fifteen and modified it.
But it show two equal pictures the first one with caption and the second without, how to remove the last one !

<?php
/**
* The template for displaying image attachments
*
* @package WordPress
* @subpackage Twenty_Fifteen
* @since Twenty Fifteen 1.0
*/

get_header(); ?>

<section id=”primary” class=”fullwidth-content-area content-area”>
<main id=”main” class=”site-main” role=”main”>

<?php
// Start the loop.
while ( have_posts() ) :
the_post();
?>

<article id=”post-<?php the_ID(); ?>” <?php post_class(); ?>>

<nav id=”image-navigation” class=”navigation image-navigation”>
<div class=”nav-links”>
<div class=”nav-previous”><?php previous_image_link( false, __( ‘Next Image’, ‘tortuga’ ) ); ?></div><div class=”nav-next”><?php next_image_link( false, __( ‘Previous Image’, ‘tortuga’ ) ); ?></div>
</div><!– .nav-links –>
</nav><!– .image-navigation –>

<header class=”entry-header”>
<?php the_title( ‘<h1 class=”entry-title”>’, ‘</h1>’ ); ?>
</header><!– .entry-header –>

<div class=”entry-content”>

<div class=”entry-attachment”>
<?php
/**
* Filters the default Twenty Fifteen image attachment size.
*
* @since Twenty Fifteen 1.0
*
* @param string $image_size Image size. Default ‘full size’.
*/
$image_size = apply_filters( ‘tortuga_attachment_size’, ‘full size’ );

echo wp_get_attachment_image( get_the_ID(), $image_size );
?>

<?php if ( has_excerpt() ) : ?>
<div class=”entry-caption”>
<?php the_excerpt(); ?>
</div><!– .entry-caption –>
<?php endif; ?>

</div><!– .entry-attachment –>

<?php
the_content();
wp_link_pages(
array(
‘before’ => ‘<div class=”page-links”><span class=”page-links-title”>’ . __( ‘Pages:’, ‘tortuga’ ) . ‘</span>’,
‘after’ => ‘</div>’,
‘link_before’ => ‘<span>’,
‘link_after’ => ‘</span>’,
‘pagelink’ => ‘<span class=”screen-reader-text”>’ . __( ‘Page’, ‘tortuga’ ) . ‘ </span>%’,
‘separator’ => ‘<span class=”screen-reader-text”>, </span>’,
)
);
?>
</div><!– .entry-content –>

<footer class=”entry-footer”>
<?php tortuga_entry_meta(); ?>
<?php edit_post_link( __( ‘Edit’, ‘tortuga’ ), ‘<span class=”edit-link”>’, ‘</span>’ ); ?>
</footer><!– .entry-footer –>

</article><!– #post-<?php the_ID(); ?> –>

<?php
// If comments are open or we have at least one comment, load up the comment template.
if ( comments_open() || get_comments_number() ) :
comments_template();
endif;

// End the loop.
endwhile;
?>

</main><!– #main –>
</section><!– #primary –>

<?php get_footer(); ?>`

The page I need help with: [log in to see the link]