Tor with VirtualBox ?

Hi, i have CentOS Linux installed in a VM.
It works well but .onion sites don't work with 503 error :
"Privoxy was unable to socks5-forward your request (the onion site) through 127.0.0.1: SOCKS5 host unreachable"
I can fix it? thanks

I don't experience such issues in VMware, VirtualBox or QEMU. Try accessing other .onion sites, such as DuckDuckGo's 3g2upl4pq6kufc4m.onion, for instance. There could be an issue if the clock is not set correctly, but there were no reports about that.

DuckDuckGo's works well. It's strange.
http://kpvz7ki2v5agwt35.onion/wiki/ don't work...