It most probably means that your user access rights disallows you from accessing maintenance functions - this would be the first place to check.
They are located in System module -> Settings -> Access Groups.
You can check what access group you are using in your persons card (System -> registers -> Persons).

Best regards,
Eberstein Business Solutions
HansaWorld Business Partner
----------------------------
Exceeding Customer Expectations
www.ebersteins.com
support@eberstein.lt