Fatal error message during registration

[ddffx]

In registration / signup page once you signup you get this message:
Fatal error: Cannot instantiate non-existent class: template in /home/spoonla1/public_html/myvivvo/lib/vivvo/service/login.service.php on line 191

This one was copied from myvivvo.com message signup process. The same thing is happening on my web site as well.
Is it a bug? Any info on this one will be greatly appreciated.
Thanks

[Alex]

This is a known bug, it will be addressed in couple of days within 4.01 patch. Thank you.