Steam recently changed the default privacy settings for all users. This may impact tracking. Ensure your profile has the correct settings by following the guide on our forums.
If your profile is showing up as Not Ranked, please review our rules page and follow the appeal process detailed there.
You are unbanned now. It seems that you were automatically banned due to your Vac ban on your profile.
Nowadays the scanner doesn't do that anymore but it used to do that.