Here's the response I got from ERAS...
Good Morning Doctor,
Unfortunately once your CAF has been certified and submitted you may not edit or change any information except your profile and documents tabs. Please call your deans office for further advice in this situation
Priscilla
ERAS Staff
Association of American Medical Colleges
2450 N Street, N.W. Washington D.C. 20037-1127
If you need additional assistance, please include the full text of this
email in your response.