"Unexpected Error" rebuild Assetto Corsa and CSP/Sol?

[Marcva]

I've had too many issues chasing the source of the "unexpected error" in my Assetto Corsa install. I have AC/VR running with many add on tracks and I'm running CSP and Sol. I was going to strip back my install to clean it up, hopefully without losing all of my track patches.

Is there a current list of versions for CSP and SOL to start with? Any guides to rebuild a corrupted AC build short of starting over again?

Thanks,

Marc