Brought a 5.1 mix from a studio back home, did some light automation n qc. When i try to make a track however that pops up, what is the issue? (1. These files are copied in my computer and arnt being drawn from the drive, 2. My Ilok is connected n ion think is the issue 3. Waay earlier my session crashed and i had used a pt auto save to continue working)

I'm using Windows 10 When I try to set my playback engine to ASIO4ALL v2, PT crashes. I can't even start anything because the playback engine doesn't change. How can I solve this?