Trouble accessing DHIS2 instance with a local WSL created DHIS2 web application

Hello everyone.
I localy created a DHIS web application in a WSL.
But I’m having trouble to access it via browser using the addresses and the login details shared in this guide Creating a DHIS2 Web app | DHIS2 Developer Portal.
Please find attached a shot of the window I got while trying to connect to DHIS2 via the web App.


When I hit “Sign in”, the page just reloads; the DHIS2’s welcome page doesn’t show-up.
Thanks in advance for any help in fixing this.
Regards,
DAGBEMAMBOU