start problem with MacOS Sierra 10.13

[Leo_nard]

Hello. I can't understand why the virtual box with macos sierra high 10.13 doesn't start me, yet the settings seem correct to me. But it gives me the error message when reading memory. I attach below the image. Can you tell me what it means? and also what should I do?
OK I don't know how to insert photos , how can i do it?

[mpack]

When composing a post, use the "Upload attachment" tab below the text window.

[Leo_nard]

ok, done. who knows what problem is it. Can you explain to me?
(first of all, let me say that it's a 6 cores, 12 threads and 16 gb of ram)

Screenshot (3).png (92.51 KiB) Viewed 1828 times

[mpack]

Although you posted in "OS X Hosts", you clearly have an OS X Guest and a Windows host.

Mac OS X guest on a Windows Host.

(topic moved to "OS X Guests").