What is the structure of the bank?

[JoseRFJuniorLLMs]

I have refacted the functions anyway so it only takes if I point to your Web Services, so it should be something related to the bank. Already got this error?

Tanks ncaught Error: Firebase.child failed: First argument was an invalid path: "undefined". Paths must be non-empty strings and can't contain ".", "#", "$", "[", or "]" at lf (firebase.js:388) at U.g.n (firebase.js:508) at waitForTranslation ((index):51) at HTMLSelectElement.languageSelect.addEventListener.e ((index):70) lf @ firebase.js:388 g.n @ firebase.js:508 waitForTranslation @ (index):51 languageSelect.addEventListener.e @ (index):70

When I feel your setup works normally!

var config = { apiKey: "AIzaSyDezVr6y-yWkIp8MIL_Oj_rCkseMSVKJi4", authDomain: "tesla-369.firebaseapp.com", databaseURL: "https://tesla-369.firebaseio.com", projectId: "tesla-369", storageBucket: "tesla-369.appspot.com", messagingSenderId: "692374669983" };
var config = { apiKey: "AIzaSyAjskV1Uf7hNmEkfzc-iWo9gSbBHyFKlwo", authDomain: "mimming-babelfire.firebaseapp.com", databaseURL: "https://mimming-babelfire.firebaseio.com", storageBucket: "mimming-babelfire.appspot.com", messagingSenderId: "913948787505" };