If you are really using Turbotax Live (and that's not a mistaken tag on your post), then contact your live expert first.
Your return would only say "ready to print and mail" if you chose to file by mail, or were forced to file by mail due to an unusual tax situation. If you can e-file, it would be much better since mailed returns are very backlogged. Your expert should be able to tell you why you must mail your return, or if you can go back into the program and e-file instead.
