push notification don't work on samsung s6

[Kart80]

Hi ,i installed on my samsung s6 and in my mac MT4 ... when i copy the metaquotes ID of my s6 and try to send a push notification from mac ,a popup opens "the notification was successfully queued.

see the journal for more information" and the notification doesn't arrive.

On the smartphone i have enable every notification and permission for MT4.

What can i do?