Cubase 8 crashing constantly after updating to el capitan

I’m running into a problem with Cubase Artist 8 after having updated to el capitan (which is the only thing I’ve changed since last using Cubase) where Cubase quits unexpectedly after every attempt to open. I get to the offer about using Pro for 16 or so more hours and after declining the program quits. Thoughts?

I just purchased a new Mac with El capitan and cubase 8 is so unstable. all the time ill add a remove an insert and the wheel of death will start… then i cubase stops responding. i have to force quit. cubase will not start again unless i restart.