Update app.py

app.py

@@ -374,6 +374,8 @@ def process_and_query(input_language=None, audio_input=None, image_input=None, t
         # Initialize the conditional variables
         combined_text = ""
         image_description = "" 
+        markdown_output = ""  # Initialize markdown_output
+
         # Process image input
         if image_input is not None:
             image_text = process_image(image_input)