After reading through various topics/solutions here, I‘m afraid I have to open a thread again. I developed locally, uploaded all files to remote… and I cannot login to panel. What I‘ve done so far:
deleted all session files
tried on different browsers / emptied cache
created new user locally and uploaded it to remote but still get „invalid password“
deleted all user account files and made sure that panel.install is available but get an invalid CSRF token error
Have you made sure not to have the same issue as the guys in that thread with the wrong header being sent because of empty lines/characters in php files?
What might also worth testing is uploading a fresh starterkit to the remote, i.e. without any changes apart from setting the panel.install option in config so that you can install the Panel on the server.
I went over all files, no empty lines… except in the config.php itself! There the first line was empty… What a bummer
Thanks for your assistance, now I’m up and running!