Hey hey! So I can reproduce on Windows and I dont even have to click anything.. I go through the portal, the popup pops up and then all sounds stop and it crashes. I tried spam clicking the prompt but nothing happened except for crashing.
And then .. I figured it out! Apparently the error does not appear using compatibility mode for Windows 8 .. so it's likely Windows 10 related.. I'm using an updated version, so the latest update from a couple of days ago. Maybe that's what the issue is .. which would suck because this is hard to debug xD
But .. I can keep playing, yeay.
Maybe for now add a note to the page that Win10 users that run into trouble could try using compatibility mode?