ONLYOFFICE Docs Community Edition installed - now what? EXAMPLE not working, what next?

[mnovosel1]

Hello.
Installed OnlyOffice CE (Docker), and got to the welcome page with JWT info and recommendation to start and try EXAMPLE. Started example but it's unable to open a file even new created.
I'm probably missing something obvious, can someone advice? Thanks!

[askonev]

Greetings @mnovosel1

I can clarify the command that launched the docker container.

I am interested in the version of the image and the repository from which the image was taken