Resolve Firebase OTP Error

Job ID: 39704373

Budget: ₹600 – ₹1,500 INR

I need help resolving an "INVALID_APP_CREDENTIAL" error for Firebase OTP login.

Key issues to address:
- Error code 400: INVALID_APP_CREDENTIAL
- Recent modifications made to authentication settings

Ideal Skills and Experience:
- Expertise in Firebase and its authentication mechanisms
- Experience troubleshooting Firebase errors
- Familiarity with modifying authentication settings

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