404.php

<?php
/**
 * Genesis Framework.
 *
 * WARNING: This file is part of the core Genesis Framework. DO NOT edit this file under any circumstances.
 * Please do all modifications in the form of a child theme.
 *
 * @package Genesis\Templates
 * @author  StudioPress
 * @license GPL-2.0-or-later
 * @link    https://my.studiopress.com/themes/genesis/
 */

// Remove default loop.
remove_action( 'genesis_loop', 'genesis_do_loop' );

add_action( 'genesis_loop', 'genesis_404' );
/**
 * This function outputs a 404 "Not Found" error message.
 *
 * @since 1.6
 */
function genesis_404() {

	genesis_markup(
		[
			'open'    => '<main class="content" id="genesis-content"><article class="page type-page status-publish entry" itemscope="" itemtype="http://schema.org/CreativeWork"><div class="entry-content" itemprop="text"><div class="wp-block-group inner-fixed padding-bottom-60 is-layout-constrained wp-block-group-is-layout-constrained"><div class="wp-block-group__inner-container">',
			'context' => 'entry-404',
		]
	);

	genesis_markup(
		[
			'open'    => '<h1 %s>',
			'close'   => '</h1>',
			'content' => apply_filters( 'genesis_404_entry_title', __( '404', 'genesis' ) ),
			'context' => 'entry-title',
		]
	);

		genesis_markup(
		[
			'open'    => '<h2 %s>',
			'close'   => '</h2>',
			'content' => apply_filters( 'genesis_404_entry_title', __( 'Error Page Not Found', 'genesis' ) ),
			'context' => 'entry-title',
		]
	);

	$genesis_404_content = sprintf(
		/* translators: %s: URL for current website. */
		__( 'Sorry we can not find the page you are looking for.<div class="wp-block-buttons blue-button round-button is-layout-flex wp-block-buttons-is-layout-flex">
<div class="wp-block-button"><a class="wp-block-button__link wp-element-button" href="/">Go Back Home</a></div>
</div>', 'genesis' ),
		esc_url( trailingslashit( home_url() ) )
	);

	$genesis_404_content = sprintf( '<p>%s</p>', $genesis_404_content );

	/**
	 * The 404 content (wrapped in paragraph tags).
	 *
	 * @since 2.2.0
	 *
	 * @param string $genesis_404_content The content.
	 */
	$genesis_404_content = apply_filters( 'genesis_404_entry_content', $genesis_404_content );

	genesis_markup(
		[
			'open'    => '<div %s>',
			'close'   => '</div>',
			'content' => $genesis_404_content,
			'context' => 'entry-content',
		]
	);

	genesis_markup(
		[
			'close'   => '</div></div></div></article></main>',
			'context' => 'entry-404',
		]
	);

}

genesis();