_upload' ] );

		if ( is_wp_error( $upload_result ) ) {
			Plugin::$instance->uploads_manager->remove_file_or_dir( dirname( $upload_result['tmp_name'] ) );

			return $upload_result;
		}

		/** @var Source_Local $source_local */
		$source_local = $this->get_source( 'local' );

		$import_result = $source_local->import_template( $upload_result['name'], $upload_result['tmp_name'] );

		// Remove the temporary directory generated for the stream-uploaded file.
		Plugin::$instance->uploads_manager->remove_file_or_dir( dirname( $upload_result['tmp_name'] ) );

		return $import_result;
	}

	/**
	 * Enable JSON Template Upload
	 *
	 * Runs on the 'elementor/files/allow-file-type/json' Uploads Manager filter.
	 *
	 * @since 3.5.0
	 * @access public
	 *
	 * return bool
	 */
	public function enable_json_template_upload() {
		return true;
	}

	/**
	 * Mark template as favorite.
	 *
	 * Add the template to the user favorite templates.
	 *
	 * @since 1.9.0
	 * @access public
	 *
	 * @param array $args Template arguments.
	 *
	 * @return mixed Whether the template marked as favorite.
	 */
	public function mark_template_as_favorite( $args ) {
		$validate_args = $this->ensure_args( [ 'source', 'template_id', 'favorite' ], $args );

		if ( is_wp_error( $validate_args ) ) {
			return $validate_args;
		}

		$source = $this->get_source( $args['source'] );

		return $source->mark_as_favorite( $args['template_id'], filter_var( $args['favorite'], FILTER_VALIDATE_BOOLEAN ) );
	}

	public function import_from_json( array $args ) {
		$validate_args = $this->ensure_args( [ 'editor_post_id', 'elements' ], $args );

		if ( is_wp_error( $validate_args ) ) {
			return $validate_args;
		}

		$elements = json_decode( $args['elements'], true );

		$document = Plugin::$instance->documents->get( $args['editor_post_id'] );
		if ( ! $document ) {
			return new \WP_Error( 'template_error', 'Document not found.' );
		}

		$import_data = $document->get_import_data( [ 'content' => $elements ] );

		return $import_data['content'];
	}

	/**
	 * Register default template sources.
	 *
	 * Register the 'local' and 'remote' template sources that Elementor use by
	 * default.
	 *
	 * @since 1.0.0
	 * @access private
	 */
	private function register_default_sources() {
		$sources = [
			'local',
			'remote',
		];

		foreach ( $sources as $source_filename ) {
			$class_name = ucwords( $source_filename );
			$class_name = str_replace( '-', '_', $class_name );

			$this->register_source( __NAMESPACE__ . '\Source_' . $class_name );
		}
	}

	/**
	 * Handle ajax request.
	 *
	 * Fire authenticated ajax actions for any given ajax request.
	 *
	 * @since 1.0.0
	 * @access private
	 *
	 * @param string $ajax_request Ajax request.
	 *
	 * @param array $data
	 *
	 * @return mixed
	 * @throws \Exception
	 */
	private function handle_ajax_request( $ajax_request, array $data ) {
		if ( ! User::is_current_user_can_edit_post_type( Source_Local::CPT ) ) {
			throw new \Exception( 'Access denied.' );
		}

		if ( ! empty( $data['editor_post_id'] ) ) {
			$editor_post_id = absint( $data['editor_post_id'] );

			if ( ! get_post( $editor_post_id ) ) {
				throw new \Exception( 'Post not found.' );
			}

			Plugin::$instance->db->switch_to_post( $editor_post_id );
		}

		$result = call_user_func( [ $this, $ajax_request ], $data );

		if ( is_wp_error( $result ) ) {
			throw new \Exception( $result->get_error_message() );
		}

		return $result;
	}

	/**
	 * Init ajax calls.
	 *
	 * Initialize template library ajax calls for allowed ajax requests.
	 *
	 * @since 2.3.0
	 * @access public
	 *
	 * @param Ajax $ajax
	 */
	public function register_ajax_actions( Ajax $ajax ) {
		$library_ajax_requests = [
			'get_library_data',
			'get_template_data',
			'save_template',
			'update_templates',
			'delete_template',
			'import_template',
			'mark_template_as_favorite',
			'import_from_json',
		];

		foreach ( $library_ajax_requests as $ajax_request ) {
			$ajax->register_ajax_action( $ajax_request, function( $data ) use ( $ajax_request ) {
				return $this->handle_ajax_request( $ajax_request, $data );
			} );
		}
	}

	/**
	 * @since 2.3.0
	 * @access public
	 */
	public function handle_direct_actions() {
		if ( ! User::is_current_user_can_edit_post_type( Source_Local::CPT ) ) {
			return;
		}

		/** @var Ajax $ajax */
		$ajax = Plugin::$instance->common->get_component( 'ajax' );

		if ( ! $ajax->verify_request_nonce() ) {
			$this->handle_direct_action_error( 'Access Denied' );
		}

		$action = Utils::get_super_global_value( $_REQUEST, 'library_action' ); // phpcs:ignore -- Nonce already verified.

		$whitelist_methods = [
			'export_template',
			'direct_import_template',
		];

		if ( in_array( $action, $whitelist_methods, true ) ) {
			$result = $this->$action( $_REQUEST ); // phpcs:ignore -- Nonce already verified.
		} else {
			$result = new \WP_Error( 'method_not_exists', 'Method Not exists' );
		}

		if ( is_wp_error( $result ) ) {
			/** @var \WP_Error $result */
			$this->handle_direct_action_error( $result->get_error_message() . '.' );
		}

		$callback = "on_{$action}_success";

		if ( method_exists( $this, $callback ) ) {
			$this->$callback( $result );
		}

		die;
	}

	/**
	 * On successful template import.
	 *
	 * Redirect the user to the template library after template import was
	 * successful finished.
	 *
	 * @since 2.3.0
	 * @access private
	 */
	private function on_direct_import_template_success() {
		wp_safe_redirect( admin_url( Source_Local::ADMIN_MENU_SLUG ) );
	}

	/**
	 * @since 2.3.0
	 * @access private
	 */
	private function handle_direct_action_error( $message ) {
		_default_wp_die_handler( $message, 'Elementor Library' );
	}

	/**
	 * Ensure arguments exist.
	 *
	 * Checks whether the required arguments exist in the specified arguments.
	 *
	 * @since 1.0.0
	 * @access private
	 *
	 * @param array $required_args  Required arguments to check whether they
	 *                              exist.
	 * @param array $specified_args The list of all the specified arguments to
	 *                              check against.
	 *
	 * @return \WP_Error|true True on success, 'WP_Error' otherwise.
	 */
	private function ensure_args( array $required_args, array $specified_args ) {
		$not_specified_args = array_diff( $required_args, array_keys( $specified_args ) );

		if ( $not_specified_args ) {
			return new \WP_Error( 'arguments_not_specified', sprintf( 'The required argument(s) "%s" not specified.', implode( ', ', $not_specified_args ) ) );
		}

		return true;
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'Elementor\TemplateLibrary\Manager' not found in /home/sportuga/public_html/wp-content/plugins/elementor/includes/plugin.php:731
Stack trace:
#0 /home/sportuga/public_html/wp-content/plugins/elementor/includes/plugin.php(647): Elementor\Plugin-&gt;init_components()
#1 /home/sportuga/public_html/wp-includes/class-wp-hook.php(324): Elementor\Plugin-&gt;init('')
#2 /home/sportuga/public_html/wp-includes/class-wp-hook.php(348): WP_Hook-&gt;apply_filters(NULL, Array)
#3 /home/sportuga/public_html/wp-includes/plugin.php(517): WP_Hook-&gt;do_action(Array)
#4 /home/sportuga/public_html/wp-settings.php(695): do_action('init')
#5 /home/sportuga/public_html/wp-config.php(102): require_once('/home/sportuga/...')
#6 /home/sportuga/public_html/wp-load.php(50): require_once('/home/sportuga/...')
#7 /home/sportuga/public_html/wp-blog-header.php(13): require_once('/home/sportuga/...')
#8 /home/sportuga/public_html/index.php(17): require('/home/sportuga/...')
#9 {main}
  thrown in <b>/home/sportuga/public_html/wp-content/plugins/elementor/includes/plugin.php</b> on line <b>731</b><br />