User blog comment:Dragonjet/KC3改/@comment-62.46.76.87-20150805185416/@comment-84.90.161.45-20150805224733

Are you on Mac? If not, did you update to Windows 10?

If the game crashes upon clicking the "Game Start" button, maybe you need to clear the browser cache and update your browser flash player, or even update the browser itself.

If this doesn't help, hopefully someone else with better knowledge can provide other solutions.