Redmine

Hello,

I have redmine installed on a Debian Jessie Machine using the official repository. I had redmine up and running on redmine.mydomain1.net. Then I had to move it to redmine.mydomain2.net. Since then no user is able to login as the message "Invalid form authenticity token." appears after Login.

What I tried so far:
- Restart apache & passenger
- Reinstall redmine completely (apt-get purge redmine && apt-get install redmine)
- Reinstall passenger
- Delete all cookies, active logins and cache in my browser.

This is definitiveley a server side issue. can someone help me out here?

Thanks in advance.

P.S.: Im a total rails noob, so please, is I have to edit anything in the ruby files, tell me exactly where there are. Thanks!