I can't see your docker compose, but it means that you're trying to run LLDAP as a user who doesn't exist in the container

>

GNU nano 5.4                                                                                                                                                     docker-compose.yml                                                                                                                                                              version: "3"
> 
> volumes:
>   lldap_data:
>     driver: local
> 
> services:
>   lldap:
>     image: lldap/lldap:stable
>     ports:
>       # For LDAP
>       - "3890:3890"
>       # For LDAPS (LDAP Over SSL), enable port if LLDAP_LDAPS_OPTIONS__ENABLED set true, look env below
>       #- "6360:6360"
>       # For the web front-end
>       - "17170:17170"
>     volumes:
>       - "lldap_data:/data"
>       # Alternatively, you can mount a local folder
>       # - "./lldap_data:/data"
>     environment:
>       - UID=####
>       - GID=####
>       - TZ=####/####
>       - LLDAP_JWT_SECRET=Foew0pfegvnwepgho
>       - LLDAP_LDAP_USER_PASS=PASSWORD
>       - LLDAP_LDAP_BASE_DN=dc=nas,dc=local
>       # If using LDAPS, set enabled true and configure cert and key path
>       # - LLDAP_LDAPS_OPTIONS__ENABLED=true
>       # - LLDAP_LDAPS_OPTIONS__CERT_FILE=/path/to/certfile.crt
>       # - LLDAP_LDAPS_OPTIONS__KEY_FILE=/path/to/keyfile.key
>       # You can also set a different database:
>       # - LLDAP_DATABASE_URL=mysql://mysql-user:password@mysql-server/my-database
>       # - LLDAP_DATABASE_URL=postgres://postgres-user:password@postgres-server/my-database

That's the UID/GID part. If it's literally

####

then that's your problem

Okay, thank you