Try going back into your personal information and delete and then reenter (even if it appears correct). You may even want to try from a different web browser (i.e. if you're using Internet Explorer, try Firefox or Chrome) If trying from a different browser, make sure to completely log out and close out browser.
If you have double checked all forms and personal information and everything is correct and they continue to rejected it, your next option will be to mail it. Here is a walk through on how to print and mail your return:
https://ttlc.intuit.com/replies/3401713