firebase – Error getting app verify token for apple register (iOS)

I used to be implementing apple sign-in for my app, as App Retailer pointers require me to. Nevertheless, I hold working into the identical concern the place it says

Error getting App Test token; utilizing placeholder token as an alternative. Error: Error Area=com.google.app_check_core Code=0 "The server responded with an error: 
 - URL: https://firebaseappcheck.googleapis.com/v1/initiatives/daypilotapp-13c8f/apps/1:337135454596:ios:5597b54d7d6e2ae9afb5d1:exchangeDeviceCheckToken 
 - HTTP standing code: 403 
 - Response physique: {
  "error": {
    "code": 403,
    "message": "App attestation failed.",
    "standing": "PERMISSION_DENIED"
  }
}

Each my apple-sign in, and app verify and app attest are enabled in my Firebase dashboard. May somebody please assist?