Problems with Raspberry Pi 4

Hi all ,
I have a problem…
I have a Raspberry Pi 4 with openmediavault 5 installed.
If i install with docker and portainer jellyfin latest tag container running but Is impossible to reach at ip and port .
If i install the Bionic version is ok.
Any suggestion?

Another question , in the Android app under wifi the local server Is unreachable (local server Button) , but with DNS i can login .

Thanks all for suggestions