Mail in State return

I'm being asked to mail in my florida state return but it should be 0... I don't know if there is an error or if I accidently selected the wrong thing... do I need to send it in mail? I don't want to file anything for state. I completed my federal return and e-filed that... what is going to happen if I don't mail in state return? I printed the document turbo tax said to print..it was a title page...no return behind it... I don't think I even have a return...not sure what is needed to be mailed.. need help