[Plugin: Razuna Media Manager] After enabled, does not work.

I’m using wordpress 3.01 (multisite enabled) + BuddyPress 1.2.5.2 (latest version) and Razuna plugin is activated but not working. I give my account information but does not add a menu, and remains frozen in checking the connection.

http://wordpress.org/extend/plugins/razuna-media-manager/