Cant login to web UI during indexing many new files

[Hromad-a]

Hi everyone,
I wanted to try this great looking piece of software. I wanted a super barebone version that I can manage with tailscale remotely. I was able to somehow make it working with docker compose on my Ugreen nas with Unraid, I used rolling version 5.0.2.
It took me some time to get it working, since i didnt even want to use https but as it was enforced I strugled quite a bit with setting up the right url and env variables in the compose which would work with tailscale.
As of right now, it works. I tested it with simple file uploads and it seem to be working.
RIght now i turned off the container and moved around 900GB of data to my user folder, changed the permissions of the folders and turned on the container. Since that moment i cannot login to the web UI. The login form is giving me:
Unexpected HTTP response: 500. Please check your connection and try again.

In the logs I get these errors from the start, not sure why, but I dont thing they are related to this issue.
2026-02-14T21:46:58+01:00 ERR cannot get upload error="Failed to get object from bucket: nats: invalid key" service=postprocessing uploadID= 2026-02-14T21:46:58+01:00 ERR continuing error="event error: cannot get upload" service=postprocessing

This is what i get in log after i try to sign in:
2026-02-14T21:46:59+01:00 WRN core access token not set host.name=bc40475f5f22 pkg=rhttp service=frontend traceid=42c01edeeb994422321f157c59d26c3f 2026-02-14T21:46:59+01:00 ERR failed to authenticate the request error="failed to verify access token: token has invalid claims: token is expired" authenticator=oidc client.address= network.peer.address=100.75.251.120 network.peer.port=53354 path=/ocs/v1.php/cloud/capabilities service=proxy user_agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0"

This is my docker-compose, as I said, super basic, I don't even use reverse proxy, just local setup with tailscale IP address.

services:
  opencloud:
    image: opencloudeu/opencloud-rolling:latest
    container_name: opencloud
    entrypoint:
      - /bin/sh
    command: ["-c", "opencloud init || true; opencloud server"]
    user: 1000:1000   # change to appuser:users but default is 1000:1000
    restart: unless-stopped
    ports:
      - 9200:9200
    environment:
       # set admin pwd only when first setting up container/config. Can be removed or commented out after.
#      - IDM_ADMIN_PASSWORD=[initial_admin_pwd]

      - IDM_CREATE_DEMO_USERS=false
      - OC_LOG_LEVEL=warn  # error warn info debug
      - OC_LOG_PRETTY=true
      - OC_LOG_COLOR=true
      - OC_SHARING_PUBLIC_SHARE_MUST_HAVE_PASSWORD=true  # default=true. False allows public links without pwd
      - OC_PASSWORD_POLICY_DISABLED=false   # default=false. True allows creation any password - no policy

      # opt 1: basic setup without reverse proxy - local access on host ip:port
      - OC_INSECURE=true  # needed if opencloud or reverse proxy is using self generated certificates 
      - PROXY_TLS=true
      - PROXY_HTTP_ADDR=0.0.0.0:9200
      - OC_URL=https://100.112.52.30:9200

    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /mnt/user/data-hdd/opencloud:/var/lib/opencloud
      - /mnt/user/appdata/opencloud:/etc/opencloud

I checked RAM/CPU usage and it was fine, like 15% usage. Any idea what might be the issue here?
I think it is possible that after the files get indexed, I will be able to login again.
Thanks for any tips.