BuddyPress Theme Installation

I have uploaded BuddyPress Corporate Theme on my Admin page, but after it has been uploaded, I got some error messages (I don't remember it now) and when I go to Appearances Tab and activate the theme, my site shows just white, blank page.

I tried the other BuddyPress Themes from this site but it happens with all other themes.

I installed the themes by going to Add New Themes page in Appearances Tab. Did I install it wrong?

Is the themes compatible with 1.1.1?

Please help. Thanks for all your help