Hi , I have a OS X El Capitan Versão 10.11.6 MacBook (13 polegadas, alumínio, finais de 2008 Processador 2 GHz Intel Core 2 Duo Memória 6 GB 1333 MHz DDR3 Disco de arranque Mao Placa gráfica NVIDIA GeForce 9400M 256 MB. And I by a traktor 3 PRO and didn’t work error installation version El Capitan Can somebody suggest me please ?