TOSAVE === $status ) {
			// If the post is a draft - save the `autosave` to the original draft.
			// Allow a revision only if the original post is already published.
			if ( in_array( $document->get_post()->post_status, [ Document::STATUS_PUBLISH, Document::STATUS_PRIVATE ], true ) ) {
				$document = $document->get_autosave( 0, true );
			}
		}

		// Set default page template because the footer-saver doesn't send default values,
		// But if the template was changed from canvas to default - it needed to save.
		if ( Utils::is_cpt_custom_templates_supported() && ! isset( $request['settings']['template'] ) ) {
			$request['settings']['template'] = 'default';
		}

		$data = [
			'elements' => $request['elements'],
			'settings' => $request['settings'],
		];

		$document->save( $data );

		// Refresh after save.
		$document = $this->get( $document->get_post()->ID, false );

		$return_data = [
			'status' => $document->get_post()->post_status,
			'config' => [
				'document' => [
					'last_edited' => $document->get_last_edited(),
					'urls' => [
						'wp_preview' => $document->get_wp_preview_url(),
					],
				],
			],
		];

		/**
		 * Returned documents ajax saved data.
		 *
		 * Filters the ajax data returned when saving the post on the builder.
		 *
		 * @since 2.0.0
		 *
		 * @param array    $return_data The returned data.
		 * @param Document $document    The document instance.
		 */
		$return_data = apply_filters( 'elementor/documents/ajax_save/return_data', $return_data, $document );

		return $return_data;
	}

	/**
	 * Ajax discard changes.
	 *
	 * Load the document data from an autosave, deleting unsaved changes.
	 *
	 * @since 2.0.0
	 * @access public
	 *
	 * @param $request
	 *
	 * @return bool True if changes discarded, False otherwise.
	 */
	public function ajax_discard_changes( $request ) {
		$document = $this->get( $request['editor_post_id'] );

		$autosave = $document->get_autosave();

		if ( $autosave ) {
			$success = $autosave->delete();
		} else {
			$success = true;
		}

		return $success;
	}

	public function ajax_get_document_config( $request ) {
		$post_id = absint( $request['id'] );

		Plugin::$instance->editor->set_post_id( $post_id );

		$document = $this->get_doc_or_auto_save( $post_id );

		if ( ! $document ) {
			throw new \Exception( 'Not Found.' );
		}

		if ( ! $document->is_editable_by_current_user() ) {
			throw new \Exception( 'Access denied.' );
		}

		// Set the global data like $post, $authordata and etc
		Plugin::$instance->db->switch_to_post( $post_id );

		$this->switch_to_document( $document );

		// Change mode to Builder
		$document->set_is_built_with_elementor( true );

		$doc_config = $document->get_config();

		return $doc_config;
	}

	/**
	 * Switch to document.
	 *
	 * Change the document to any new given document type.
	 *
	 * @since 2.0.0
	 * @access public
	 *
	 * @param Document $document The document to switch to.
	 */
	public function switch_to_document( $document ) {
		// If is already switched, or is the same post, return.
		if ( $this->current_doc === $document ) {
			$this->switched_data[] = false;
			return;
		}

		$this->switched_data[] = [
			'switched_doc' => $document,
			'original_doc' => $this->current_doc, // Note, it can be null if the global isn't set
		];

		$this->current_doc = $document;
	}

	/**
	 * Restore document.
	 *
	 * Rollback to the original document.
	 *
	 * @since 2.0.0
	 * @access public
	 */
	public function restore_document() {
		$data = array_pop( $this->switched_data );

		// If not switched, return.
		if ( ! $data ) {
			return;
		}

		$this->current_doc = $data['original_doc'];
	}

	/**
	 * Get current document.
	 *
	 * Retrieve the current document.
	 *
	 * @since 2.0.0
	 * @access public
	 *
	 * @return Document The current document.
	 */
	public function get_current() {
		return $this->current_doc;
	}

	/**
	 * Get groups.
	 *
	 * @since 2.0.0
	 * @deprecated 2.4.0
	 * @access public
	 *
	 * @return array
	 */
	public function get_groups() {
		_deprecated_function( __METHOD__, '2.4.0' );

		return [];
	}

	public function localize_settings( $settings ) {
		$translations = [];

		foreach ( $this->get_document_types() as $type => $class ) {
			$translations[ $type ] = $class::get_title();
		}

		return array_replace_recursive( $settings, [
			'i18n' => $translations,
		] );
	}

	private function register_types() {
		if ( ! did_action( 'elementor/documents/register' ) ) {
			/**
			 * Register Elementor documents.
			 *
			 * @since 2.0.0
			 *
			 * @param Documents_Manager $this The document manager instance.
			 */
			do_action( 'elementor/documents/register', $this );
		}
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'Elementor\Core\Documents_Manager' not found in /var/www/html/exs.com.br/web/blog/wp-content/plugins/elementor/includes/plugin.php:597
Stack trace:
#0 /var/www/html/exs.com.br/web/blog/wp-content/plugins/elementor/includes/plugin.php(531): Elementor\Plugin-&gt;init_components()
#1 /var/www/html/exs.com.br/web/blog/wp-includes/class-wp-hook.php(324): Elementor\Plugin-&gt;init('')
#2 /var/www/html/exs.com.br/web/blog/wp-includes/class-wp-hook.php(348): WP_Hook-&gt;apply_filters(NULL, Array)
#3 /var/www/html/exs.com.br/web/blog/wp-includes/plugin.php(517): WP_Hook-&gt;do_action(Array)
#4 /var/www/html/exs.com.br/web/blog/wp-settings.php(727): do_action('init')
#5 /var/www/html/exs.com.br/web/blog/wp-config.php(113): require_once('/var/www/html/e...')
#6 /var/www/html/exs.com.br/web/blog/wp-load.php(50): require_once('/var/www/html/e...')
#7 /var/www/html/exs.com.br/web/blog/wp-blog-header.php(13): require_once('/var/www/html/e...')
#8 /var/www/html/exs.com.br/web/blog/index.php(17): require('/var/www/h in <b>/var/www/html/exs.com.br/web/blog/wp-content/plugins/elementor/includes/plugin.php</b> on line <b>597</b><br />