@orange that's right. Just want to add 2009 MacBooks won't support Sierra. IPP is available for Sierra and High Sierra ( at least when I downloaded it)

thanks Christopher I've tried that but it still comes up.

thanks buddy

I need a little bit more info. What samples are dropped where (the sampler or the looper) and when does it crash? Is this happening on macOS or Windows? If macOS, can you post the crash log?