novnc proxmox4.4

Hi, I have reinstalled proxmox4.4 (was on 5.3 but experienced the issues described here: https://forum.proxmox.com/threads/node-with-question-mark.41180/. 5.3 was a fresh install.). Everything is working fine on 4.4, but noVNC does not open properly. Please see attached picture. I installed...