I can't log in to Nextcloud

Hello everyone. Maybe I’m doing something wrong? I hope someone will tell me.
I’m trying to run Nextcloud behind HAProxy https://github.com/nextcloud/all-in-one/blob/main/reverse-proxy.md
After setting up HAProxy and starting containers i can’t log in Nextcloud with my initial username (default admin) and initial password, but nothing happens. The page reloads and I get to the login page again.

If you don’t share logs and more details, it will be hard for someone to help you.

Hi, was this resolved in Unable to login after fresh install · nextcloud/all-in-one · Discussion #3370 · GitHub?