Redirect after registration

Hi. I have set everything good.
One page after registration, but when a customer register himself, it gives the error:
http://www.websitename.com/reservedarea/?login=empty

But i have set a page for redirect that is: wp-login.php
But also if i change that i have the same problem.

What i can do?
Thank you.

https://wordpress.org/plugins/wp-registration/