我的注册控制器不会显示电子邮件文本字段。

I have been trying to programmatically create two separate view controllers in which I have a login, and sign up view controller. While my initial view controller, Login allows me to see the email/password text field, my sign up controller does not. I have plugged in the correct information however when I run my application, it is blank. I will post my code below, can anyone help me solve this issue? I have been trying to programmatically create t