@soeungi, when I quickly scanned your XLSForm, I could see multiple form design issues. I would like to list them out here so that it could also be helpful for our community.
-Seems like you have also not managed your translations properly.
To learn more on managing translations, please feel free to have a look at our support articles:
-I also observed some duplicate choices in your XLSForm.
This post discussed previously should also help you learn what happens if the choices are duplicate.