Как исправить Warning: Creating default object from empty value in

Как исправить Warning: Creating default object from empty value in /www/wwwroot/***/scripts/functions.php on line 760

Код:

$zapros_channel="";
while ($row = mysqli_fetch_assoc($result)) {
    $data->items[$i] = new stdClass();
    $id=$row['youtube_id'];
    $data->items[$i]->id=$row['ID'];
    $data->items[$i]->youtube_id=$row['youtube_id'];
    $data->items[$i]->title=$this->format_title($row['name']);
    $data->items[$i]->description=$row['description'];
    $data->items[$i]->datetime=$row['datetime'];
    $data->items[$i]->img_small=Main::http_to_https($row['img_small']);
    $data->items[$i]->img_medium=Main::http_to_https($row['img_medium']);
    $data->items[$i]->img_large=Main::http_to_https($row['img_large']);
    $data->items[$i]->channel_id=$row['channel_id'];
    $data->items[$i]->playlist_id=$row['playlist_id'];
    $data->items[$i]->quality=$row['quality'];
    $data->items[$i]->likes=$row['likes'];
    $data->items[$i]->comments=$row['comments'];
    $data->items[$i]->views=$row['views'];
    $data->items[$i]->dislikes=$row['dislikes'];
    $data->items[$i]->duration=$row['duration'];
    $data->items[$i]->deleted=$row['deleted'];
    $channel_id=$data->items[$i]->channel_id;
    if(!empty($row['description'])){
        $data->items[$i]->description=$row['description'];
    }
    if($i!=0){
        $zapros_channel.=" OR ";
    }
    $zapros_channel.="`channel_id`='$channel_id'";
    $i++;
}

}

Строка:

$data->items[$i] = new stdClass();

Как исправить?