No problem, you can add a password
When you used Facebook to create a Utomik account and want to use both Facebook and a password to login to the client and website you can by adding a password to your account.
How to add a password
You can add a password by logging into the website (https://www.utomik.com) and navigating to manage account. On this page you will be able to set your password if you don't have one yet or change it if you do.