Hi Martin,
thanks for your reply.
I already searched on the forum and try some solutions without success.
I tried to enable the Apache header configuration and add these settings in the zammad.conf:
User Login - CSRF token verification failed! (‘RequestHeader’ fix does not work):
RequestHeader set X_FORWARDED_PROTO 'http'
RequestHeader set X-Forwarded-Ssl on
But not working 
I tried to clear the cache.
I tried to create a new user with admin rights via console, but the login not working.
The CSRF error appears also if I insert the wrong username and password…
This is a test installation to verify the Zammad functionality with OTRS data imported, I don’t have configured the https protocol (it is the next step).
But OTRS was configured in https, can this be the problem? Did you change the Zammad setting from http to https during import?
How I can verify the Zammad protocol configuration via console?
Thanks.