Welcome to the community! Maybe this post discussed previously could help you solve your issue.
The possible reason for seeing the error message is due to some typo where you should have made in your survey form. Try validating them with this online validator and you should be able to identify and fix it out.
Error: The name column for the ‘lh7yv24’ choice list contains these duplicates: ‘others’. Duplicate names will be impossible to identify in analysis unless a previous value in a cascading select differentiates them. If this is intentional, you can set the allow_choice_duplicates setting to ‘yes’. Learn more: XLSForm.org.