Can I create two FSA(FAFSA) IDs?

I already have FAFSA ID because it was created when I went to college this spring.
For some reason, when I was filling it out, the IRS retrieve tool didn’t work so I stopped filling it out and didn’t submit it.

by the way

  1. I am considering creating a new FAFSA ID for my child’s FAFSA form. Is it ok and possible?
    or
  2. Do I need to use the same ID (that I created as a student) for my son?
  3. Is it not allowed to create two IDs with one person, I mean only one ID is allowed with one SSN?