You need to have corrected information on your file, to have the ban on entry parameter corrected. Information about travelers is contained within so called VIS system (The European Union Visa Information System - a database containing information, including biometrics, on visa applications). Information is centrally stored in a database located in Strasbourg. The bodies having access to VIS are embassies, police authorities from member states (that is also border control), and the Europol. The EU Agency for large-scale IT systems, euLISA, is responsible for the operational management of VIS (
www.eulisa.europa.eu). So, to correct yout information in the system, you might try contacting these two agencies, the euLISA and the Norwegian embassy. Let us know the progress of your case.