Firebase Authentication Hot reload issue

This is a bit of an old issue, which is properly solved in some of the newer code, however I have an older code base, where i have my setup based on the code in: https://github.com/FilledStacks/boxtout/blob/main/src/clients/customer/lib/services/user_service.dart.
My issue is what when ever I hot reload my app, my app crashes hard with:
What Im i doing wrong. I only experiance this issue when hot reloading as far as i am aware