Firebase connection is now working with login screen

I created Login Screen.
Created Firebase account and connected the Thunkable app to Firebase via filling with required details (API Key and Databse URL).
But when I do live testing , I do not see any thing happening nor user is getting added to Firebase account.
I wrote correct block logic as well, refer to my app - My Personal Library.
Kindly help in getting this solved.

You used sign-up block or manually add a user from Firebase? If sign-up block is used, what error message did you get from the block? if there is none, please check the email used to sign-up as firebase will send an email to verify if email address is legitimate…