Firebase Auth Problem

Hi to everyone

the no auth has been solved so this is great
my problem, for now, is when I enable firebase auth and go to the preview page and go for the login button, the app send failed login message
so I add the initialize firebase flow function in the global ganvas in the app launched event and go to the preview page… this time does not give me the failing message but gives me nothing -_-
and the URL is changed from (/page.page6) my login page URL to (//) URL
As shown in the images

the app ID: 256029
If anyone could help me I will be so much grateful to him