You can easily change your password in the settings after logging in. All you have to do is enter your current password and then set your new password.

If you have forgotten your password, you can request a new password on the log-in page. To do this, click on "Forgot your password?" and enter your e-mail address in the next step.

You will then be sent a link by e-mail with which you can reset your password and set a new password.