[Support request] Protected posts in shortcode

Hi, we use the shortcode below to show a list posts from a given category, some of which are protected. Now when I include this shortcode on any page, that page – that in itself is not protected – becomes protected content. It seems to be tripping over the fact that it is including content from one or more protected posts.

Is there a way to use the below shortcode and include also protected posts, but still have the page on which that shortcode is included be accessible as normal? If that is too complicated, would it be possible to simply filter out protected posts from this loop?

Thanks,
Ivan

function bvkm_posts_shortcode()   {
    $args = array( 'posts_per_page' => 4, 'category_name' => 'evenement');                  
    $last_5_posts_query = new WP_Query( $args );
    while($last_5_posts_query->have_posts()) : 
        $last_5_posts_query->the_post();
        $link = get_permalink();
        $title = get_the_title();
        $date = get_the_date();                              

        $content .= '<div class="x-recent-posts recent_events cf vertical" data-x-element="recent_posts" data-fade="false">';
        $content .= '<a class="x-recent-post4 no-image" href="'.$link.'" title="Permalink to: '.$title.'" style="outline: none;">';
        $content .= '<article id="post-" class="post type-post status-publish format-standard hentry category-evenement">';
		$content .= '<div class="entry-wrap"><div class="x-recent-posts-content">';
		$content .= '<span class="event_datum">' .get_field('event_datum'). '</span>';
		$content .= '<h3 class="h-recent-posts">' .$title. '</h3>';
        $content .= '<span class="event_metadata"><i class="x-icon x-icon-map-marker-alt" data-x-icon-s="" aria-hidden="true"></i> ' .get_field('event_locatie'). ' <i class="x-icon event_clock_icon x-icon-clock" data-x-icon-s="" aria-hidden="true" style="text-align: center;"></i> ' .get_field('event_aanvangstijd'). '</span>';
		$content .= '</div></div>';	
		$content .= '</article>';	
		$content .= '</a>';
		$content .= '</div>';
    endwhile;

return $content;
}

add_shortcode('bvkm_events', 'bvkm_posts_shortcode' );