Notification stop working

 
Notification was working well for me, and every trade open .... notification sent ,.... But one time, the notification stood up .... Did anyone have an idea
 

Same problem for me....since few days, notification didn't work well...

No ideas where that come from...

 
I have the same problem, notifications used to work just fine 3 months ago, since then it started to be delivered with some random delay and sometimes not at all...
 

I have the same problem.


Notifications sometime spend more than hour to sent/receive.