Bug: Firebase Notification Channel POST https://oauth2.googleapis.com/token resulted in a 400 Bad Request` invalid JWT

[sts-ryan-holton]

Hi, i've recently implemented the Laravel Firebase Notifications into my Laravel 8 project. It was working initially upon deployment after configuring my credentials, but now after the weekend I've got loads of failed jobs in my database (jobs are set up in my project to dispatch notifications through my channels) whereby the error is relating to an invalid grant for the token endpoint on Google?

I never configured any JWTs in the set up of the Laravel notification channel other than downloading a service account JSON file from Firebase and simply using JQ to put it into my env like this...

FIREBASE_CREDENTIALS='{"type":"service_account","project_id": ... }'
FIREBASE_DATABASE_URL=https://MYPROJECT-7aa08.firebaseio.com

How can i fix this error?

GuzzleHttp\Exception\ClientException: Client error: POST https://oauth2.googleapis.com/token resulted in a 400 Bad Request response:
{"error":"invalid_grant","error_description":"Invalid JWT: Token must be a short-lived token (60 minutes) and in a reaso (truncated...)
in /var/www/project-beacon-api/shared/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:113
Stack trace:

My Default GCP resource location in Firebase is set to europe-west2