Hi Ramona,
You cannot install service packs onto programs when they are at an older version. You indicated that you are running version 9.0C, so you are not allowed to install a service pack belonging to version 9.0D.
The solution is to download the Upgrade for version 9.0D from
here, which will include all service pack changes. You will have received install codes by email when the original upgrade to 9.0D was released. A password to install an upgrade will be available from your Adagio consultant.