How do I get new forgotten password for my Libra Office account?

Don’t know how this works, but I can not download new version because it asks for my password which I don’t remember ever having. How do I establish password?

I don’t know where you downloaded your Libre Office package but you if you download from here:
http://www.libreoffice.org/
you don’t need to register nor do you need and account.

If you download from above link and still have problems then please explain in details what you did and also post URL you are using.