I see no theme options that affect category or archive posts in my theme, and here's all there is to my archive.php:
?php get_header(); ?>
<?php // Get Theme Options from Database
$theme_options = dynamicnews_theme_options();
?>
<div id="wrap" class="container clearfix">
<section id="content" class="primary" role="main">
<?php if ( function_exists( 'themezee_breadcrumbs' ) ) themezee_breadcrumbs(); ?>
<header class="page-header">
<?php
the_archive_title( '<h2 class="archive-title">', '</h2>' );
the_archive_description( '<div class="archive-description">', '</div>' );
?>
</header>
<?php if (have_posts()) : while (have_posts()) : the_post();
get_template_part( 'content', $theme_options['posts_length'] );
endwhile;
dynamicnews_display_pagination();
endif; ?>
</section>
<?php get_sidebar(); ?>
</div>
<?php get_footer(); ?>