Firebase Connection Fix for Android Code

I have a complete Android project coded in Java and utilizing Firebase. I've gotten it to the point where the code is working on my laptop, but I'm encountering issues connecting to the Firebase database. My Firebase project is completely set up, but I need an Android developer with Firebase knowledge to help troubleshoot and connect the code.

Skills needed:
- Proficiency in Java and Android development
- Experience with Firebase, particularly Realtime Database
- Problem-solving skills and ability to troubleshoot code
- Good communication skills for explaining issues and solutions