virtualbox.org

Sure, send me a PM with a link. I won't be able to see anything in any event. It's going to crash!

Please PM me as I fell foul of the message board rules (not having five posts)

I will, but... you have 9 posts already. Hm, weird...

Apparently five posts and five days....

Please free to email me using <edit>

This email will self destruct...

Quick update, I upgrade my MBP to macOS High Sierra (10.13.6) and during booting the guest still persists the VERR_IEM_INSTR_NOT_IMPLEMENTED error

It's been more than 5 days by now. "Where's the beef?"
(i.e. send me the link that we've been struggling)