Are deleted products included in the sitemap in Opencart?

[JlarBo3]

Hello Friends,
On our website based on Opencart, products that have been deleted still appear in the sitemap. I started getting continuous 404 errors in Google Webmaster Tools because of the Seo Url feature. I blocked the old pages from robots.txt and realized the issue when I sent a new map. The products have been completely deleted and are not in stock or closed. I checked many sites but couldn't find a solution. Does anyone have a solution suggestion?

You can find the Sitemap.php code below:

```php
class ControllerFeedGoogleSitemap extends Controller {
public function index() {
if ($this->config->get('google_sitemap_status')) {
$output = '';
$output .= '<?xml version="1.0" encoding="UTF-8"?>';

$this->load->model('catalog/product');
$products = $this->model_catalog_product->getProducts();
foreach ($products as $product) {
$output .= '<url>';
$output .= '<loc>' . $this->url->link('product/product', 'product_id=' . $product['product_id']) . '</loc>';
$output .= '<changefreq>weekly</changefreq>';
$output .= '<priority>1.0</priority>';
$output .= '</url>';
}

$this->load->model('catalog/category');
$output .= $this->getCategories(0);

$this->load->model('catalog/manufacturer');
$manufacturers = $this->model_catalog_manufacturer->getManufacturers();
foreach ($manufacturers as $manufacturer) {
$output .= '<url>';
$output .= '<loc>' . $this->url->link('product/manufacturer/info', 'manufacturer_id=' . $manufacturer['manufacturer_id']) . '</loc>';
$output .= '<changefreq>weekly</changefreq>';
$output .= '<priority>0.7</priority>';
$output .= '</url>';

$products = $this->model_catalog_product->getProducts(array('filter_manufacturer_id' => $manufacturer['manufacturer_id']));
foreach ($products as $product) {
$output .= '<url>';
$output .= '<loc>' . $this->url->link('product/product', 'manufacturer_id=' . $manufacturer['manufacturer_id'] . '&product_id=' . $product['product_id']) . '</loc>';
$output .= '<changefreq>weekly</changefreq>';
$output .= '<priority>1.0</priority>';
$output .= '</url>';
}
}

$this->load->model('catalog/information');
$informations = $this->model_catalog_information->getInformations();
foreach ($informations as $information) {
$output .= '<url>';
$output .= '<loc>' . $this->url->link('information/information', 'information_id=' . $information['information_id']) . '</loc>';
$output .= '<changefreq>weekly</changefreq>';
$output .= '<priority>0.5</priority>';
$output .= '</url>';
}

$output .= '</urlset>';

$this->response->addHeader('Content-Type: application/xml');
$this->response->setOutput($output);
}
}

protected function getCategories($parent_id, $current_path = '') {
$output = '';
$results = $this->model_catalog_category->getCategories($parent_id);
foreach ($results as $result) {
if (!$current_path) {
$new_path = $result['category_id'];
} else {
$new_path = $current_path . '_' . $result['category_id'];
}
$output .= '<url>';
$output .= '<loc>' . $this->url->link('product/category', 'path=' . $new_path) . '</loc>';
$output .= '<changefreq>weekly</changefreq>';
$output .= '<priority>0.7</priority>';
$output .= '</url>';

$products = $this->model_catalog_product->getProducts(array('filter_category_id' => $result['category_id']));
foreach ($products as $product) {
$output .= '<url>';
$output .= '<loc>' . $this->url->link('product/product', 'path=' . $new_path . '&product_id=' . $product['product_id']) . '</loc>';
$output .= '<changefreq>weekly</changefreq>';
$output .= '<priority>1.0</priority>';
$output .= '</url>';
}

$output .= $this->getCategories($result['category_id'], $new_path