Update. Fixed this thanks to suggestion from someone else on this thread.
I updated the personal info section to list my mom first and my dad second. Also, the first time. I tried to file I indicated that my father was deceased but I had not indicated my Mom status as "Widowed" I updated her status to widowed and then went to e-file again. I completed my mom's AGI info (driver's license info etc.) but left everything for my father blank. Return was accepted!
