errors get_active_blog_for_user()

I am new to WPMUDev and could not get ANY pre-sale questions. So I had to purchases - and here are the first errors:

Fatal error: Call to undefined function get_active_blog_for_user() in /<path>/wp-content/mu-plugins/communities-framework.php on line 501

Call to undefined function get_active_blog_for_user() in /<path>l/wp-content/mu-plugins/communities-framework.php on line 552

Can anybody suggest how to get this fixed?
I presume this is commercial plugin and such errors has already been documented somewhere?

Please advise,

And another error when trying to 'Manage Communities'...
Fatal error: Call to undefined function is_site_admin() in /<path>l/wp-content/mu-plugins/communities-framework.php on line 2721