What does this error mean?

docker-compose down && docker-compose up -d
Stopping n8n_n8n_1 … done
Removing n8n_traefik_1 … done
Removing n8n_n8n_1 … done
Removing network n8n_default
Creating network « n8n_default » with the default driver
Creating n8n_traefik_1 …
Creating n8n_traefik_1 … error
WARNING: Host is already in use by another container

ERROR: for n8n_traefik_1 Cannot start service traefik: driver failed programming external connectivity on endpoint n8n_traefik_1 (cabad0870bb26f9b478448b451
Creating n8n_n8n_1 … done

ERROR: for traefik Cannot start service traefik: driver failed programming external connectivity on endpoint n8n_traefik_1 (cabad0870bb26f9b478448b4510edcfe2a2a405e8e383a6a39cb0d3145e57ef3): Error starting userland proxy: listen tcp4 0.0.0.0:443: bind: address already in use
ERROR: Encountered errors while bringing up the project.

Hi ycolor, this is the French n8n community. So you should ask english questions on https://community.n8n.io/ for the next time.

I found that your issue was already found here Host n8n in a server where apache is also running - Questions - n8n

It’s seem’s you have already started a container or service that listen on 443 port.