getToken() Empty - but able to send notifications

[Daniel123454321]

Problem:
I do not get an individual token from getToken method.
But I can send messages via the firebase console using the package name - and the messages getting recieved by the device.
But without a token there is no individual messaging possible.

On building I get an warning: "Library expects a BoM package: com.google.firebase:firebase-messaging"

System:

• Cordova 11
• SDK 32
• only a few default cordova plugins installed
• Quasar/Vue Framework

What have I tried to resolve that problem:

• tried to revert Java Code of getToken() to older version
• tried the to implement the javascript code on different pages on the cordova project
• tried a timeout before calling the getToken method
• tried adding different libraries to the gradle.build file
• • like firebase-bom, com.google.gms:google-service, firebase, ...

I hope anyone has an idea or can point me in the right direction.

Update:
I tried now several other cordova plugins and also some paid services like wonderpush.
The Problem is everywhere the same. I get no token or deviceID. When I look on the backend (e.g. Wonderpush) I can see that there of course is an token oder deviceID registered.
So it seems the problem is somewhere else - but I don't know where :/

[Daniel123454321]

I made now a complete empty new cordova project.
With no other plugins, no extra code, no Quasar/Vue Framework.
Just the default cordova template + getPermission + getToken Code.

It's just like above: I get the warning when building & I don't get an tokenID.
It doesn't work on the emulator nor after deploying it via the play store.

Maybe someone has a working sample project to share or want's to check my code.