My NY state return is only allowing me to "Ready to Mail". It's not giving me an option to eFile after eFiling the federal return. How do I now eFile my state return?

I tried to eFile both federal and state together, but I kept on getting the following message, "Our records indicate that you are not entitled to efile one or more formsets.". I then tried to file individually. The federal went through. But now I don't have an option to eFile my state return.