Stopped displaying the best posts on the main WP?

Question

WordPress

The code

<?php

class BestPosts
{

    public static $cache_key = 'grid___cache_best_post_';

    private $posts = [];

    public function __construct()
    {

        if (!is_singular() && !is_archive()) {
            add_filter('grid__best_posts_array', [$this, 'fixed_posts'], 10, 1);
            add_action('grid__best_posts', [$this, "block"], 10, 2);
        }

        add_action('updated_postmeta', [$this, 'clear_cache'], 20, 3);

        add_filter('grid__best_posts_title', function ($title, $offset) {

            if (0 < $offset) {
                return __return_empty_string();
            }

            return $title;

        }, 10, 2);
    }

    public function clear_cache($meta_id, $object_id, $meta_key)
    {

        if ('in_best' == $meta_key) {
            delete_transient(self::$cache_key . 0);
            delete_transient(self::$cache_key . 5);
        }

    }

    public function block($item, $offset)
    {

        if (0 < $offset) {
            $this->posts = array_slice($this->get_posts($offset), 0, -1);
        } else {
            $this->posts = apply_filters('grid__best_posts_array', $this->get_posts($offset));
        }

        echo $this->block_html($offset);

    }

    public function block_html($offset)
    {

        $transient_key = self::$cache_key . $offset;

        $cached = get_transient($transient_key);

        if ($cached !== false) {
            return $cached;
        }

        $title = apply_filters('grid__best_posts_title', 'Топ лучших статей', $offset);

        $res = '';
        $res .= "<div class='grid__best-posts-wrapper'>";
        $res .= "<div class='grid__best-posts-wrap'>";
        $res .= "<div class='grid__best-posts'>";

        if (!empty($title)) {
            $res .= " <div class='grid__best-posts-title'>";
            $res .= apply_filters('grid__best_posts_title', 'Топ лучших статей', $offset);
            $res .= "</div>";
        }

        $res .= "<div class='grid__best-posts-items'>";

        $i = $offset;

        foreach ($this->posts as $post):
            $i++;
            $link = get_the_permalink($post);
            $res .= "<div class='grid__best-posts-item'>";
            $res .= "<div class='grid__best-posts-item-number'>";
            $res .= $i;
            $res .= "</div>";
            $res .= "<a href='{$link}' class='grid__best-posts-item-title'>";
            $res .= get_the_title($post);
            $res .= "</a>";
            $res .= "</div>";
        endforeach;
        $res .= "</div>";
        $res .= "</div>";
        $res .= "</div>";
        $res .= "</div>";

        set_transient($transient_key, $res, 24 * HOUR_IN_SECONDS);

        return $res;
    }

    public function fixed_posts($posts)
    {

        $date = new DateTime(date('Y-m-d') . " 23:59:00");
        $timestamp = $date->getTimestamp();

        $args = [
            'post_type' => ['post', 'advert_post', 'hub'],
            'posts_per_page' => -1,
            'order' => 'DESC',
            'orderby' => 'meta_value_num',
            'category__not_in' => [6],
            'post_status' => 'publish',
            'meta_query' => [
                'best' => [
                    'key' => 'in_best',
                    'value' => $timestamp,
                    'compare' => '>=',
                    'type' => 'NUMERIC'
                ],
            ]
        ];

        $best_posts = get_posts($args);

        $best_posts_ids = array_map(function ($elem) {
            return $elem->ID;
        }, $best_posts);


        $posts = array_filter($posts, function ($elem) use ($best_posts_ids) {
            if (in_array($elem->ID, $best_posts_ids)) {
                return false;
            }

            return true;
        });

        $merge = array_merge($best_posts, $posts);

        return array_slice($merge, 0, 5);
    }

    public function get_posts($offset = 0)
    {
        $args = [
            'offset'           => $offset,
            'post_type'        => ['post', 'advert_post'],
            'posts_per_page'   => 5,
            'order'            => 'DESC',
            'category__not_in' => [6],
            'post__not_in'     => [ 609503 ],
            'post_status'      => 'publish',
            'orderby'          => 'meta_value_num',
            'meta_key'         => apply_filters('pvc__mata-key',''),
            'date_query'       => [
                array(
                    'after' => '7 days ago',
                    'before' => '1 days ago',
                    'inclusive' => true,
                )
            ]
        ];

        $posts = get_posts(apply_filters("grid__best_posts_args", $args, 'in_date'));

        if (5 <= count($posts)) {
            return $posts;
        }
        unset($args['date_query']);

        $posts = get_posts(apply_filters("grid__best_posts_args", $args, 'out_date'));

        return $posts;
    }


}

There is a function that displays the last 5 main articles on the main page.

The point is the following. There is a field in which I set the date until which it should be in this block. Based on this, already added posts are there until the date indicated in the field. But now there are posts with an empty date field. And the one that I set to gain a foothold until 08/10/2021, no.