Come up with a new, strong password for your Mate Account. It must be at least 8 characters long. We recommend to save it in an encrypted password storage (e.g. 1Password) to never forget it again.
Restoration code in the URL is missing. It's a crucial component by which we identify for whom a new password should be set. Please make sure you opened the correct link (it should be in the email you got from us). Contact us if nothing works.