Unexpected KoBoCAT error 400: b’{“detail”:“The name column for the 'zo9df75' choice list contains these duplicates: 'self_employed'

Welcome to the community, @jahonga7777! Have you validated your XLSForm through this online validator? The online validator should help you identify your syntax issues.

Regarding your error message, it seems like there are some duplicate choices. This post discussed previously should help you understand and resolve it:

You should also be able to learn more about this issue here.