If there are other users, such as Grandparents, on the profile update form, the Grandparents first and last names must be added in order for the form to submit without error.

Also, specific to Grandparents, the Grandparent Relationship Type must be enabled.

This error message may also occur if one parent is auto-populating their household information and a spouses household information.

If Auto-populating the household information:
  1. Remove the Mother, Father and Student from the Form.
  2. Save the Form
  3. Add the student back as a User Regarding.
  4. Re-enter the information for both the mother and father.
  1. Uncheck any instance of the 'Address Same as Student' box, and manually enter the address (this is another form of auto-populating)