Out of curiosity, what browser was causing the issue? I can try testing with it.i had the same issue. first if you do use your "return to previous webpage button" you can go back and stay at the error message. Second, for me it was a browser issue, it worked after trying a new browser. The developer did suggest a couple other things that can be causing it though. such as an adblocker or how your computer unzips the file
edit: I see now from your previous message that you were on Firefox - will test
for instance this time around, safari decided to try and inject telephone numbers into the game code!! Because it thought some numeric strings were phone numbers, and I had to add some meta tags to ensure it didn’t see them that way. Maybe it’s something similar to that that I could fix.