At the turn of the school year, students are upgraded and school leavers are marked as "school leavers". If you receive the following message, then your account has been marked as a "school leaver".
If this is not correct and you still need your Sdui account for the school, you can get in touch with your Sdui contact person at your school. The Sdui admin can undo this setting.
If you are not sure who the Sdui admin at your school is, you can also contact the secretariat. Here you should be able to tell who the Sdui admin is.