Hello student

hope you are doing well and safe. With reference to your query,  I would glad inform you that if you re-apply the application it will cause duplicacy against your name which will cause a problem of malpractise . I would advise you to mail the higher authorities about your problem ,when from their end your form will be unlocked then only you will able to correct your mistake in the form

Hope you found this answer informative. Best wishes for your future