I need help resolving firebase storage error code 412

[SakhileMamba]

I am suddenly getting the following Firebase storage error.

{
  "error": {
    "code": 412,
    "message": "A required service account is missing necessary permissions. Please resolve by visiting the Storage page of the Firebase Console and re-linking your Firebase bucket or see this FAQ for more info: https://firebase.google.com/support/faq#storage-accounts. If you recently made changes to your service account, please wait a few minutes for the changes to propagate through our systems and try again."
  }
}

I have tried the solutions linked in the response message, other GitHub issues, and Stack Overflow. I have verified the correct IAM principal and permissions in Google Cloud, but the issue persists.

Principal: service-projectnumber@gcp-sa-firebasestorage.iam.gserviceaccount.com

permission: Cloud Storage for Firebase Service Agent

Note: I also don't have the upload file options in the Firebase console under storage options. See image below.