Proxmox VE Web GUI is a Blank Page

Yes I have done that. Tried different browsers on different machine, even on android/chrome. Same result, blank page.
 
But what do you see in the browser's dev tools as mentioned?
 
Last edited:
I have done those steps.
Still getting response with an empty body:
Part of page source:
<body> <!-- Fields required for history management -->
<form id="history-form" class="x-hidden">
<input type="hidden" id="x-history-field"/>
</form>
</body>
 
I have install the latest update and kernel then rebooted.

Then I ran these again:
rm -f /etc/apt/apt.conf.d/no-nag-script
apt install --reinstall pve-manager proxmox-widget-toolkit
systemctl restart pvedaemon pveproxy

The body content is still this:
<body> <!-- Fields required for history management -->
<form id="history-form" class="x-hidden">
<input type="hidden" id="x-history-field"/>\
</form>
</body>

The web service is responding but the only content is hidden.