Topic: Fireface 400 UCX, Push 2 and High Sierra

Hi all,
I have just installed Live 9 by Ableton, to use with my Push 2.
It worked fine, but then I downloaded the latest drivers for the Fireface and it crashed and won't open.
After following the numerous suggestions online, in the end I had to re install the OS and now it works.

Can anyone please advise me on the Fireface UCX driver I should use to avoid any further crashes?

Thanks in advance for any help.
D.