A template for self-hosting Grist with traefik and docker compose

Hi here,
many thanks for this tool, looks fantastic.
I’m trying to use this compose.yml file to self-host Grist, but I get an error when i try to load webpage, maybe you could advice me where to search, because I feel stuck !

grist-1     | 2025-03-06 17:26:06.685 - debug: Auth[GET]: xxx.xxx.xx / customHostSession=, method=GET, host=xxx.xxx.xx, path=/, org=, email=anon@getgrist.com, userId=1, altSessionId=undefined
grist-1     | 2025-03-06 17:26:06.686 - error: UNHANDLED ERROR unhandledRejection (0): TypeError: Cannot read properties of undefined (reading 'alive')
grist-1     |     at forceSessionChange (/grist/_build/app/server/lib/BrowserSession.js:12:36)