get rendered view instead if get error: Notice: Undefined property: view::$dom_id ... refer to https://www.drupal.org/node/1556174
$view = views_get_view('lp_promoted_content');
$display_id = 'promoted_content';
// Set the display and arguments based on the pane's context.
$view->set_display($display_id);
$args = $view->args;
$args[0] = $node->nid;
$view->set_arguments($args);
// ADD THESE 2 LINES IN TO REMOVE ERRORS
$view->pre_execute();
$view->execute();
$output = $view->render();