Hello! I am so sorry you are having that issue. I have spoken with people that have played the pc and linux versions, but I haven't been able to check on the mac if that is the one you are trying.
Please be sure that you are downloading the correct file type for your computer.
I did find this: https://itch.io/t/1112356/cannot-read-property-build-of-undefined-error-when-try...
Where others have had a similar problem and found a workaround. Though from reading that it looks like it might be the version of windows you are running, possibly. In which case besides the work around in the link, I am not sure what I can do on my end.
I am sorry I can not be more help.