KA Lite Server - hanging after hitting 'start server'

Hi, I’m running 64 bit Windows 7, trying to install KA-lite. I’ve run the Window installer, and when I do so I get the below. The server asks me to ‘please wait’ while starting. At this point I’ve tried restarting the computer, waiting for over an hour to see if it rectifies the issue, and uninstalling/reinstalling. None of it seems to make a difference. Is this an issue with a possible fix?