Monica - Password change leads to loss of the TLS/SSL connection

[albotroz]

I have Monica in a separate LXC container
Also Cloudflared LXC container

A subdomain with Cloudflare Tunnel via Cloudflared.
The default credentials are on Monica's helper scripts page.
See here:
https://community-scripts.github.io/ProxmoxVE/scripts?id=monica

Changing the default username maintains the secure connection.
The secure connection is only lost when the default password is changed and is then secure connection is no longer accessible.

Does anyone have the same problem?

Edit:
Had to change in .env
APP_ENV=production
APP_TRUSTED_PROXIES=(all Cloudflare-IP)
APP_TRUSTED_CLOUDFLARE=true