It's not letting me post a screenshot of the bug that's not letting the game load. I'll type it here:
"Unable to parse Build/Flappy Doge.framework.js.br! This can happen if build compression was enabled but web server hosting the content was misconfigured to not serve the file with HTTP Response Header "Content-Encoding: br" present. Check browswer Console and Devtools Network tab to debug."
It started working after I closed and opened the tab. I'll leave the post here just in case it helps the developer or game.