I have been using the era 300 since January. Once have I had to reset it since it wouldn’t work. 
 

But the other they it stopped showing up and now it is registered in my app. When I try to register it, it just say that it didn’t work and I should try again later. I have again tried to reset it but still says the same. 

This is my diagnostics number: *************

Moderator edit: Diagnostic number recorded and removed.