Only white area in browser - no login prompt appears

[nr3]

Hello everyone
Since the update yesterday I have a strange phenomenon: When I want to view the server in the browser I only get a white area.
No error message, just nothing is shown. I have just noticed that no login prompt appears. Is there a way to force it ?
I have already emptied the cache, tried another browser or started a private window, just white. Same result on another computer. Several restarts of the server also didn't help. The version is Linux 6.8.4-2-pve
Does anyone know what can help here?
Thanks and regards

 

[dcsapak]

can you open the browser console (typically with e.g. F12) and check the console for errors?

 

[nr3]

I have not seen any error messages when I open the page with F12. I will set up the server again, it won't take long, but the blind flight is not really nice