Update app.py

app.py

@@ -253,7 +253,8 @@ class FileProcessor:
         except Exception as e:
             logger.error(f"File processing error: {e}")
             return []
-generate_qr_code(json_data):
+            
+def generate_qr_code(json_data):
     """Generate a QR code from JSON data."""
     qr = qrcode.make(json_data)
     qr_path = "output/qr_code.png"