It seems you are using some kind of a custom installation.
I’d recommend installing Workspace with a script following our guide to avoid such issues.
i’am installing using this guide Installing ONLYOFFICE Groups for Docker on a local server - ONLYOFFICE
Please check if Nginx and Monoserve are running inside Community Server container:
docker exec -it onlyoffice-community-server service nginx status docker exec -it onlyoffice-community-server service monoserve status
If some of these services is down, please restart them.
I’m having the same problem, I installed following the same precedent and it doesn’t start, does anyone have a solution?