Unfortunately, a small claims judgment cannot be appealed. However, you may ask the court to open the judgment, which is what I suggest you do. You have a limited amount of time to do this so I would do it quickly. An attorney maybe be able to draft the motion to open for you for a nominal fee. It might be worth asking for a free consult. You may also want to write a letter to the Chief Court Administrator (Judge Barbara M. Quinn, Chief Court Administrator, Office of the Chief Court Administrator, Supreme Court Building, 231 Capitol Avenue, Hartford, CT 06106) regarding the magistrate's error, as does sound as if a significant error was made. Feel free to contact my office. Good luck.
Karen S. Poirier, Esq.
Holmes & Poirier
Family, Criminal, Landlord/Tenant and Personal Injury Lawyers
Serving Hartford, New London and Tolland Counties
67 Russ Street
Hartford, CT 06106