Traccar 5.6 blocks location update

Hello dears,
I previously commented on various threads about device location update failing.

I explain well what the problem we have is, I currently use traccar 5.6 in its modern version, but every time users register the firebase token, it stops updating the positions of any gps device that is associated with that user. A quick solution is to remove the token and restart the gps connection, every time we do this all the position updates arrive.
Has anyone here had the same issue and found a way to fix it? I appreciate your comments.

The issue with Firebase has already been fixed. Have you tried master branch?

Hello, can you tell me where I see that information. A link or an access where you can solve this problem.

https://www.traccar.org/forums/topic/manager-firebase-push-notification-strange-error/#post-83216