What does it means your divorce is incomplete

It means that you are missing essential pieces necessary to have the court finalize your divorce.  In order to obtain a final judgment of dissolution (divorce), you have to follow certain rules and complete all of the forms properly.  I would encourage you to take the envelope to an attorney who can review what you have done and assist you in getting your paperwork in order.  Often times, when untrained litigants try to do it themselves, or hire a paralegal, or legal document assistant, things get missed, and it costs more in the long run to fix the mistakes.