How to add a password to my account?

You can do this by going to the login screen.

Click the "Or login with Password" link right under the black button. 

After this, you click on the "Forgot Password" link. 

There you fill in your email address and look for the following email in your email inbox. 

After clicking on the link in the email, you'll be able to change or, in this case, attach a password to your account. 

After this, you can log in to the Tjibby's Members area with a password.