help with aokp

hi i have problems with s3 i9300 international i have now rom aokp and i need re install all because i have a error when the phone starts android.systemui i read i have to install a clean rom i try clean rom 8.1 but when i try install i cant what you think to do,
anyone know rom aokp im testing and work ok, someone recommends another rom, maybe is well to change, where i can find clean rom for i9300
thankss