I just did a latest install and feel frustated with Kopano.
a) After install it is asking me for a Kopano acc (I wonder why?)
b) I head over Kopano and register for a free acc at https://meet-app.io/meet-pricing-free.php. There is no option to create a password.
c) I get an email from Kopano about the good things in Kopano.
d) I dig further and create an account in https://portal.kopano.com/user/register. I log in after getting a password.