If you have forgotten your password to your model or studio account you have a few alternative methods to recovering it.
With access to your email address and username, you can use the following page to request a new password: https://www.xmodels.com/en/secured/login/request
If you have neither email nor Xcams-Models access, you can write an email to info@xcams-models.com with your personal details, ID and Face+ID picture, and the support team will provide you with new login details.