404.php

<?php
/**
 * The template for displaying 404 pages (not found)
 *
 * @link https://codex.wordpress.org/Creating_an_Error_404_Page
 *
 * @package M_Media_Custom_Theme
 */

get_header();
?>

	<main id="primary" class="site-main container">

		<section class="error-404 not-found mt-5">
			<header class="page-header">
				<h1 class="page-title"><?php esc_html_e('Oops! That page can&rsquo;t be found.', 'm-media-custom-theme');?></h1>
			</header><!-- .page-header -->

			<div class="page-content">
				<p><?php esc_html_e('It looks like nothing was found at this location. Maybe try one of the links below or a search?', 'm-media-custom-theme');?></p>

					<?php
get_search_form(array('class_submit' => 'btn btn-primary'));

the_widget('WP_Widget_Recent_Posts');
?>

					<div class="widget widget_categories">
						<h2 class="widget-title"><?php esc_html_e('Most Used Categories', 'm-media-custom-theme');?></h2>
						<ul>
							<?php
wp_list_categories(
    array(
        'orderby' => 'count',
        'order' => 'DESC',
        'show_count' => 1,
        'title_li' => '',
        'number' => 10,
    )
);
?>
						</ul>
					</div><!-- .widget -->

					<?php
/* translators: %1$s: smiley */
$m_media_custom_theme_archive_content = '<p>' . sprintf(esc_html__('Try looking in the monthly archives. %1$s', 'm-media-custom-theme'), convert_smilies(':)')) . '</p>';
the_widget('WP_Widget_Archives', 'dropdown=1', "after_title=</h2>$m_media_custom_theme_archive_content");

the_widget('WP_Widget_Tag_Cloud');
?>

			</div><!-- .page-content -->
		</section><!-- .error-404 -->

	</main><!-- #main -->

<?php
get_footer();