ubuntu 22.04.3 lts

Well, I'm using a virtual machine for using Linux, but unfortunately, I tried to install tigervncserver (for gui apps) on the Linux distro (Ubuntu 22.04) but it wasn't found at apt, i tried to use apt-get, getting it from sourceforge but nothing changes. Here's the output when i tried to install...

I am not really sure what to say here exactly, but I have been running Ubuntu on my HP Laptop since 20.04 LTS and had upgraded to 22.04 LTS. Everything was fine until .3 came out and my external video via the HDMI port stopped working and would only boot to the black screen with the flashing...