Firebase Phone Auth for Forgot Password

For the forgot password to work, the admin-end needs to verify the request via firebase. There you need to upload your firebase service account to the admin-end.
Here is a link to how to generate and download service account from your firebase project:
After you have downloaded the service-account.json file, you need to upload it to the admin-end.
On you admin-end go to settings > Push notification setting(Firebase). In the form provided you will see the section that allows you to you upload the just downloaded service-account.json file.
After uploading this file, you will now be able to successfully perform a password rest on the app.