Cubase crash every time!!!

Help me please! I can’t work!

This is my dumps:
https://www.dropbox.com/s/405u1lqh5vtci7z/Cubase%208.0.20.468%2064bit%202015.6.30%2016.17.dmp?dl=0
https://www.dropbox.com/s/ve8q4p2ztqytdpz/Cubase%208.0.20.468%2064bit%202015.6.30%2016.27.dmp?dl=0
https://www.dropbox.com/s/cdyh8jyu7eiit7j/Cubase%208.0.20.468%2064bit%202015.7.1%2016.22.dmp?dl=0
https://www.dropbox.com/s/t3voudx9n0h9fh9/Cubase%208.0.20.468%2064bit%202015.7.2%2013.30.dmp?dl=0

It is drop down very often! I save my project manually, because my project saving 1 min. It so long!