After update Piwik 2.9.1 can't login no more

After update piwik* I can’t login to userface. user / password were no more accepted. (In the browser - firefox / midori. The piwik-app in my iPhone works fine.)
I take a new (old) password over my emailadress. But it doesn’t work.

I can go to the database and see my user mail and hashtag from the password.
Is it something with the token?

Where is the problem and how I can fix it?
fltz

Hi there, try to reset your password below the login form and it may fix the issue?