I need some advise.

I have a customer that I am filing a sole proprietor schedule C. She is married so I put Married filing separate. Her husband filed there taxes as Married filing Joint. Proserious rejected her return because it say's her name and SS# was used on another return. Is there another way for me to file her return or does her husband have to amend his return so i can resubmit hers?

Thank you in advance