I have a link to join the LastPass family and whenever I go to the link it takes me to the page where I have to set up my master password but whenever I setup my master password, it doesn't process the page, and gives me an error saying "You didn't enter your LastPass master password". I've tried clearing the Cache and cookie from my browser and tried using a new link as well, it's just not working. How do I set up my account? This is the screenshot of the error.