I also would be glad to fi xthe issue. In fact, I already spend much time into this issue, but it is very hard to fix a problem you can not produce your self. Of course there is a home button normally, but there is normally also a distance in the middle and a selected extruder showing in the selector. As all is missing, something did went wrong. I see 3 things we could try.
1. Open in desktop browser and check in console for error messages.
2. You could send me the xml printer config in case that the config is the issue. BTW: how did you install it if this is a new image? Because the format has changed a bit, but existing configs get upgraded during reading the files.
3. Send me a complete image of your install if that is not too big. Only tricky part is not to publish your license key. But I would postpone this when 1. and 2. do not show any thing.