StackBlitz live demo not working (locally too)

[varogonz95]

Version info

React:
^18.2.0

Firebase:
^9.15.0

ReactFire:
^4.2.2

Other (e.g. Node, browser, operating system) (if applicable):

Test case

Steps to reproduce

1. Go to Live demo, nothing happens...
2. Not even with my own firebase config.

Expected behavior

To display "The burrito is good/bad"

Actual behavior

Currently showing this:

Error in /~/index.js (41:14)
Cannot read properties of undefined (reading 'yummy')