Jellyfin WebUI does not load once installed on HA

I installed Jellyfin, and once everything is installed, I click to webUI, and it just sits and spins. It just goes to a black screen.

I can provide logs, just let me know what is needed.
HA is installed in a VirtualBox on, Kubuntu. It is the latest, and everything is up to date.
Virtualbox is up to date, as far as I know.
I tried to load the WebUI for jellyfin, in Edge, and Samsung browser.
Anyone have success with jellyfin installed in HA? I just want to stream media from my home network, to my cell when I got out and about.