Problem VR session not launching, crash dump attached

I know its not official STEAMVR launch method that I am using so hopes are not high the Devs would help, so maybe some support from the community instead

trying to launch the Game through opencomposite but it refuses to do so.

I am using the trick describing on this thread https://forum.kw-studios.com/index.php?threads/vr-performance-tweaks-tips.13068/