1, system problem. It may be that there is something wrong with the school system. You can try to wait for a while, or contact the academic affairs office of the school or relevant departments to inquire about the situation.
2. The result has not been entered. Maybe the school hasn't entered the make-up exam results yet. You can consult the teacher or the Academic Affairs Office to confirm whether the grades have been entered or need to be re-entered.
3. Personal information. It may be because the personal information is incorrect or incomplete. You can check whether personal information is complete and accurate, such as name, student number, ID number, etc.