problems with the content sharing site on facebook

Dear, can someone help me understand why facebook "read and interpret" bad links that I try to share?
by the debugger from here: developers.facebook.com/tools/debug
I find the presence of "errors that need to be resolved" The site is under development at the following address: www.marcobrusati.com
I honestly thought that using a template recently (Academy) with joomla 3.2 does not have these problems!

what do that errors say?

I attach a screen with the debug link on facebook.
"Errors That Must Be Fixed"
[Can't Download Could not retrieve data from URL.]

this happens with every page I try to share on facebook.
Quite serious as the situation for us.

Thanks for support

Check answer on this forum:

stackoverflow.com/questions/12321015/cou...trieve-data-from-url

the problem is probably from the service provider hosting. By turning off Gzip compression I have not reported problems. thanks anyway for the help.