It says html lower case code missing.
Okay, so I did some testing and wasn’t able to replicate the error? I, also, did some digging and the best I can find is that there is a browser error? It doesn’t seem to be an issue with the twine game, itself. Perhaps a different browser might solve the error? If that doesn’t fix it, can you post a screenshot of the error message? I’m so sorry that it’s not working out.