Update app_v2.py

app_v2.py

@@ -51,7 +51,7 @@ def bot(history):
         except IOError:
             response = "Failed to open image. Please check the image path or file permissions."
     else:
-        response = moondream.answer_question(question=last_message,tokenizer=tokenizer)
+        response = moondream.answer_question(None,question=last_message,tokenizer=tokenizer)
 
     history[-1][1] = ""
     for character in response: