A family of Microsoft word processing software products for creating web, email, and print documents.
Based on my experience, clicking Repair Now from this prompt does not always resolve the issue.
Could you please try performing an Online Repair for Microsoft 365/Office instead? You can refer to step 3 of the AI answer or follow the steps in this article: Repair an Office application | Microsoft Support (make sure you choose Online Repair)
Once finished, please restart the device and let me know whether Word opens normally.