Impossible to login - CSRF token verification failed!

I’ve installed Zammad and I successfully accessed the admin panel.
However, in a sudden, after having changed the protocol to https I’m not able to access it anymore.
Error is CSRF token verification failed!

How can I solve this issue?

  • Used Zammad version: 5.2.2
  • Used Zammad installation type: package
  • Operating system: CentOS
  • Browser + version: Chrome

Expected behavior:

Actual behavior:

Steps to reproduce the behavior: