When I try to log in to the Stellar Widgets demo site to follow the 101 Course tutorials, it asks for username or email and pwd. If I enter my email that I usually use to log in to WordPress and the usual WordPress password, it rejects the login. If I try to change the password, it does not even recognize the email. This is strange since I can successfully log on to WordPress itself or to the WordPress domain I purchased. Thanks for your help.
The Stellar Widgets demo site used in our videos is a strictly fictitious website that only exists so we can demonstrate WordPress in our videos.
There is no reason you should ever need to log into our demo site. And of course, that site would not recognize your login credentials, because you are not an authorized user for that particular website.
Hope this helps explain the mystery. 🙂