[Plugin: WP-PageNavi] wp_pagenavi not working

https://www.averageparent.com
Select a category then go to bottom of page. Creates page numbers, but when click on a page number (2,3,4,etc.), goes back to home page.
Code:

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<?php get_header() ?>
<div id="mainCol">
<div id="content">
     <?php if (have_posts()) : ?>
               <?php while (have_posts()) : the_post(); ?>
               <div class="archiveBox">
                         <a>"><h2><?php the_title() ?></h2></a>
                         <p><span class="author"><?php the_author() ?></span>??<?php the_time('l, F j, Y') ?></p>
                         <p><?php the_excerpt() ?></p>
               </div>
               <?php $count++ ?>
               <?php endwhile; ?>
     <?php endif; ?>

<?php if(function_exists('wp_pagenavi')) { wp_pagenavi(); } ?>
</div>
</div>
<?php include (TEMPLATEPATH . '/rightCol.php'); ?>
<?php get_footer() ?>

https://www.ads-software.com/extend/plugins/wp-pagenavi/