Patched notifications to handle empty result.

assets/js/ui/actions.js

@@ -95,6 +95,14 @@ function initUiActions(store, _router) {
 			offset: (page - 1) * limit,
 		});
 
+		if (!notifications) {
+			return {
+				notifications: [],
+				totalCount: 0,
+				unseenCount: 0,
+			};
+		}
+
 		const curatedNotifications = notifications.nodes.map(notification => curateNotification(notification));
 
 		return {