serveral warning once the "Facebook Friends" block is activated

There are 3 warnings when the "Facebook Friends" block is activated:

I'm using the patched version (http://drupal.org/files/issues/more-bug-fixes-795128-153_0.patch)

Notice: Trying to get property of non-object in fbconnect_invite_block_view() (line 81 of /var/www/sites/all/modules/fbconnect/fbconnect_invite/fbconnect_invite.module).
Notice: Undefined variable: fbid in fbconnect_get_connected_friends() (line 198 of /var/www/sites/all/modules/fbconnect/fbconnect_invite/fbconnect_invite.module).
Notice: Undefined variable: content in fbconnect_invite_block_view() (line 102 of /var/www/sites/all/modules/fbconnect/fbconnect_invite/fbconnect_invite.module).