Well I deactivated all my plugins (with the exception of the buddypress plugin) and then tried to create and new account as a user and it worked. No white screen.
So then I thought id activate my plugins one at a time and see at what point would I get the white screen again after submitting the sign up page. Well I didn’t. All my plugins are back to being active again and I can still sign up as a new user. Not sure if it has to do with the order in which plugins are installed and activated or what but it seems to work now.