I think you misunderstood. My point is auto-login, not redirect to login page.
Please read my question again above.
– User register and User automatically login (get session) without having to type username / password again.
Unfortunately, there is no option to Auto-login after registration. It’s possible to implement only by additional customization. If you need help with additional customization contact WPKraken team also, you may use some 3-rd party plugin to achieve needed result.