Cubase pro and korg pa3x problem

Sorry my bad English. I downloaded trial cubase 8 pro, I use a Korg pa3x. The issue that goes into cubase crash. Example, I import a midi file, and how to use vst HALion if, then I decide to change the preset with one of pa3x Korg stopped cubase, but the program encountered a serious errore…I of pa3x drivers are updated, and no other music program runs . The system is ok. Check in from cubase 4.5 and this study gave no problem. Does anybody know what might be the problem?