It may be that your information has not been uploaded to the server for the time being, which may be caused by reasons such as network and speed, but this possibility is low.
Maybe you were cheated, and it was a fake driving school. This possibility is also relatively low, but this situation is not ruled out.
You entered the wrong ID number when registering, so you need to contact the driving school to correct it. This happens from time to time, sometimes because the driving school helps, which may cause a greater chance of making mistakes.
Registration is not officially started until the fingerprint and avatar are entered. If you haven't done this yet, you can't do online training for the time being.