What occupation were you applying for?
If you apply to an occupation that is currently closed, you will receive a response, indicating that the occupation is closed, and that you will have to select another choice. Your file will be closed, but it will be assigned to your nearest recruiting detachment. You will have to contact the detachment if you want to be reoriented into another occupation and have your file reopened.
If you really only want that occupation, find out if it is going to open again. Most occupations will open in the early spring for the new fiscal year. You may have to reapply online, depending on how long it has been since you last applied. Otherwise, you can contact your detachment at that time and ask them to reopen your file.