In researching, the same thing happened a year ago and the solution was that the login module had the wrong links which should be:
Registration: index.php?option=com_users&view=registration
Forgot:index.php?option=com_users&view=remind
Password reset: index.php?option=com_users&view=reset
How do add these in the SClogin module or do I do a hidden link to these in a menu. I can't remember what I did last time