Most likely, you enter an incorrect username when logging in to the website. Try specifying your phone number or e-mail address in the ""username"" field. As soon as you log in to your profile change your username to the one that is more convenient to you in your profile settings. You can find out how to do this here. If you forgot your username, a detailed information on the necessary steps can be found here; If you still have problems, contact the Customer Support Team. Please note that recovering your data with the help of the Customer Support Team may take some time. Moreover, the Customer Support Team may ask you to provide additional information, whereas when you try to restore access to your profile on your own, you will be done in a matter of minutes.