We're sorry to hear that you are having trouble registering for the course! We have heard that this is happening for a few users and it would be wonderful if you both could try a few steps to find a resolution. Here are some steps that may help:
2. Sometimes this error comes up when you are currently logged in too many Google accounts at the same time using Google Multiple Account Sign-In. Try signing out of everything before you attempt to register.
Please let me know if any of these steps resolve the issue!
Cheers,
Katie, Analytics Academy Staff