Solve some React App issues & help as a mentor

Job ID: 31082113

Budget: £10 – £20 GBP

I'm fairly new to programming and have made a react based website using firebase storage, database and authentication.
I deployed my site on netlify but the authentication isn't working and I cant figure out whats wrong. I've added environment variables and added the authorized domain to firebase. The authentication was working fine locally.

Also, the app was working fine locally and suddenly it only shows a white screen and nothing in the console. I don't know what happened. Please write mentor in your reply.

I'd like someone with React, Netlify and Firebase experience to help me out and also someone who can review my code and advise going forward. Its a personal project that I'd like to complete for my portfoilio and I need someone who is friendly and open to genuinely helping me through my journey.

Thanks