All of the Ren'py games I've tested so far all come up with the same issue when downloading the .zip files for the games all that comes up is "Downloading game data... Could not download game.zip: Error in body stream More information may be available in the browser console or contained in the log." In the Firefox console it says "Failed to load 'https://fgn.cdn.serverable.com/common/flashes/nf/horizon_of_passion/game.zip'. A ServiceWorker intercepted the request and encountered an unexpected error." Not sure if its an issue with the Gamcore site or a new issue between firefox and ren'py
Thank you for the information. We fixed it and now everything should work. Please check if everything works correctly for you and give your feedback.