sendBroadcastNotification not working

Apps & Services myopenHAB
1

I’m having trouble receiving messages on my Openhab app on iOS

It has worked before, but it did not send anything yesterday but received the messages 3 hours later.
Are there any problems with this service

rule "Reminder Window Kontor"
when
Item Vindue_Kontor changed

then
if( Vindue_Kontor.state == OPEN)
			{
			Window_Timer_kontor = createTimer(now.plusMinutes(10))
					[|
					sendBroadcastNotification("Please close window in office")
					logInfo("rules", "Vinduet i kontoret har været åben i 10min")
                    ]
            }
else
{
	Window_Timer_kontor.cancel
	logInfo("rules", "Timer for vindue kontor stoppet")
	sendBroadcastNotification("The Window is closed")
	
	
}
end

It works when I sent a message from the http://www.myopenhab.org/ page to my phone