We are aware of some issues with the registrations end of last week/early this week. If you cannot log on using the provided credentials, please register again using another email address (private mail address is possible as well). Use the instructions in GitHub.
Before doing that, you can check two things:
Check if you received updated URLs today, November 16.
Are you logged in with your SPxxxxx user? You can check by clicking on your profile picture (in your case, probably a letter) in the top right corner of the screen. If not, sign out and back in with your SPxxxxx user.
We are aware of some issues with the registrations end of last week/early this week. If you cannot log on using the provided credentials, please register again using another email address (private mail address is possible as well). Use the instructions in GitHub. Before doing that, you can check two things: