footer isn't showing

Can someone tell me why my footer isn’t displaying?

I have the wp_footer at the end of my main index template-

<?php get_header(); ?>

<div class="primary<?php if (!is_singular()) echo ' posts'; ?>">
    <?php if (have_posts()) { ?>

        <?php if (is_singular()) { // Single entries and pages ?>

            <?php while (have_posts()) { the_post(); ?>

                <div <?php post_class('entry'); ?>>

                    <div class="meta">
                        <?php the_title('<h1 class="title entry-title">', '</h1>'); ?>

                        <?php echo th_post_metadata(); ?>
                    </div>

                    <div class="content clearfix">
                        <?php echo tarski_post_thumbnail(); ?>
                        <?php the_content(); ?>
                    </div>

                    <?php th_postend(); ?>

                </div> <!-- /entry -->

            <?php } // End entry loop ?>

        <?php } else { ?>

            <?php get_template_part('app/templates/loop'); ?>

        <?php } // End loop types ?>

    <?php } else { // If no posts ?>

        <?php get_template_part('app/templates/no_posts'); ?>

    <?php } // End loop ?>

    <?php if (is_singular() && !is_attachment()) comments_template(); ?>
</div>

<?php get_sidebar(); ?>
<?php wp_footer(); ?>

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