Tanggung Jawab Pejabat Pembuat Akta Tanah terhadap Akta Jual Beli Atas Sertipikat yang Dibatalkan Pendaftaran Peralihan Haknya (Studi Kasus Putusan Nomor 550/Pid.B/2021/PN Jkt/Sel) = Responsibility of the Land Deed Making Official for the Deed of Sale and Purchase on the Canceled Registration of the Transfer of Rights (Case Study Verdict Number 550/Pid.B/2021/PN Jkt/Sel)