The mess**e could not be delivered to the device identified by 'd3NW2mASRPe2Bu2aE6h2c8:APA91bHpNy_FGT-7Aq5gyJ2OlL8ySXE0KlWL2EFT1Ku5Xiib741X_uAYPuXdcrqTAbus03LGftmg2SdFIApB-PvzXkm7SuwCSw2ee8rW8RZp8on4FJ9_FcYa7VZAXHKiI5rrKFuvGT5M' Although the token is syntactically correct it is not known to the Firebase project you are using This could have the following reasons: - The token has been unregistered from the project This can happen when a user has logged out from the application on the given client or if they have uninstalled or re-installed the application - The token has been registered to a different Firebase project than the project you are using to send the mess**e A common reason for this is when you work with different application environments and are sending a mess**e from one environment to a device in another environmentdigiproxy.space