Simply put this code and rename files as

archive-lp-testimonials.php

<?php

/**
 * Template Name: Testimonial Archives
 * Description: Used as a page template to show page contents, followed by a loop through a CPT archive
 */

remove_action ('genesis_loop', 'genesis_do_loop'); // Remove the standard loop
add_action( 'genesis_loop', 'custom_do_grid_loop' ); // Add custom loop

function custom_do_grid_loop() {  

	// Intro Text (from page content)
	echo '<div class="page hentry entry">';
	echo '<h1 class="entry-title"> Recommendations </h1>';
	echo '<div class="entry-content">' . get_the_content() ;

	$args = array(
		'post_type' => 'lp-testimonials', // enter your custom post type
		'orderby' => 'menu_order',
		'order' => 'ASC',
		'posts_per_page'=> '12',  // overrides posts per page in theme settings
	);
	$loop = new WP_Query( $args );
	if( $loop->have_posts() ):

		while( $loop->have_posts() ): $loop->the_post(); global $post;

		echo '<div id="testimonials"><i class="fa fa-quote-left"></i>';
			echo '<div class="testimonial">';
			echo '<blockquote>' . get_the_content() . '</blockquote>';
			echo '</div>';
			$items = get_post_meta( get_the_ID(), 'testimonial-details', true );
			foreach ( $items as $item) :
   				if(!empty($item))
   				echo '<p class="client">'.$item.'</cite>';
			endforeach;
		echo '</div>';

		endwhile;

	endif;
}

/** Remove Post Info */
remove_action('genesis_before_post_content','genesis_post_info');
remove_action('genesis_after_post_content','genesis_post_meta');

genesis();

https://www.ads-software.com/plugins/genesis-testimonials-cpt/