PERMANENT FIX: Add comprehensive error handling and validation to clinical_analysis endpoint - Wrap entire endpoint in try-except for graceful error handling - Add input validation for required fields (name, date, time) - Add safe datetime parsing with specific error messages - Fix sun_sign_index calculation using modulo to prevent IndexError - Validate engine data before accessing planetary positions - Handle numerology calculation errors gracefully - Return detailed error responses with error type and traceback - Add defensive getattr() calls throughout - Prevent silent failures by logging errors This ensures the API always returns JSON responses (success or error) rather than silently failing, making debugging much easier.