password reset does not work

Good morning everybody,

we have a problem with resetting passwords of our subscriber.

First of all - if they forgot their password, it appears a new window on our start-site, not on the blog-site, where it should appear. That is very confusing and not very comfortable.

And the second, much more bigger problem is, that the reset-link of the email does not work.
If you forget the password, than you can request a mail with a link to reset the password.
This link does not work.

Please help me!

Thanks a lot in advance.
Kind regards
Margitta