Do you live in Georgia, Michigan, New York, or Vermont? - only those states accept e-filed amended returns. Amended returns for all other states must be paper-filed.
If you live in one of those four states and are still concerned, there isn't any harm in printing and filing the amended state return by mail.
If amending in another state, you will have to print and file by mail.
See Can I e-file my amended state return?
