The plugin is now compatible with Elgg 2.3

Fixes fatal error caused by the fact that in Elgg 2.3 instant notifications
are using the new Elgg\Notifications\InstantNotificationEvent class, and
therefore they behave differently.

start.php

@@ -144,7 +144,7 @@ function notifier_notification_send($hook, $type, $result, $params) {
 	$event = $params['event'];
 	/* @var Elgg_Notifications_Event $event */
 
-	if (!$event) {
+	if (!$event || !$event->getObject()) {
 		// Plugin is calling notify_user() so stop here and let
 		// the NotificationService handle the notification later.
 		return false;