Support system disappeared from admin menu


I’ve had your support system plugin installed for a week now and just noticed that the support menu has disappeared from the nav for all levels. Not even an admin can see it, only super admins. Any ideas? I’ve tried uninstalling and reinstalling but that did not help. The site can be reached here:

You guys have a login:

user: ****

pass: ****

If you could take a look that would be great.