Synology VMM: "noVNC encountered an error" when using CLI

Hi, so my Home Assistant works fine. But recently I can not enter the CLI at all. I receive this message:

I am unable to do anything or make this pop-up disappear. It’s like it’s frozen.

As I said, Home Assistant is functioning totally fine in the GUI, but I obviously need to fix the CLI situation.

My current versions:

  • Core 2024.10.4
  • Supervisor 2024.10.3
  • Operating System 13.2
  • Frontend 20241002.4

Any advice on how to troubleshoot this?