Getting error in single-portfolio.php file

1.<?php endwhile(); endif; ?>
2.<?php get_footer(); ?>

<?php get_header(); ?>

   <section class="two-column row no-max pad">
      <div class="small-12 columns">
        <div class="row">
        <?php if (have_posts() ) : while ( have_posts() ) : the_post(); ?>
          <!-- Primary Column -->
          <div class="small-12 medium-7 medium-offset-1 medium-push-4 columns">
            <div class="primary">

          <?php the_field( 'images' ); ?>

                </div>
            </div>

            <!-- Secondary Column -->
            <div class="small-12 medium-4 medium-pull-8 columns">
                <div class="secondary">

                    <h1><?php the_title(); ?></h1>
                    <p><?php the_field( 'description' ); ?></p>

                </div>
            </div>
        <?php endwhile(); endif; ?>
    </div>
</section>
<?php get_footer(); ?>