i have deleted everything, domain, user, certificate.
as i start a new try, i have enabled "ssl checkboxes" directly at all and it works
i think the problem is, when you make a user without ssl, then activate a certificate, and after this, u enable "ssl" then there are strange failures.
i donīt know why it is possible to add a ssl cert for a domain as root, if it is only possible as a user.
this is too complicated for standart user.
I hope it will be improved in future