[HANDS-ON BUG] Unable to download files

**Describe the bug** Whenever I try to download a file I get a 404 **To Reproduce** ``` url = "https://agents-course-unit4-scoring.hf.space" requests.get(f"{url}/files/cca530fc-4052-43b2-b130-b30968d8aa44") # This task should contains a .png # {'task_id': 'cca530fc-4052-43b2-b130-b30968d8aa44', 'question': "Review the chess position provided in the image. It is black's turn. Provide the correct next move for black which guarantees a win. Please provide your response in algebraic notation.", 'Level': '1', 'file_name': 'cca530fc-4052-43b2-b130-b30968d8aa44.png'} ``` [https://agents-course-unit4-scoring.hf.space/files/cca530fc-4052-43b2-b130-b30968d8aa44](url) **Additional context** The endpoint /questions is working, it's just this one that seems missing