You point us to the page for registered users.
However, when I look at the list of Administrators there is an "Unregistered" user there "Ted Cui " - I guess that is you (along with the name of one of the Nabble team). It is not normal for an Administrator to be unregistered.
More curious still is that when you click on the link to that profile there is still a working link to "Send Email to Ted Cui", page. This suggests that there is an email address known to Nabble - which is not compatible with that user being unregistered.
Time for someone from the Nabble team to investigate, I think!
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.