Update app.py

app.py

@@ -49,7 +49,7 @@ def stream_chat(message, history: list, temperature: float, max_length: int):
             raise gr.Error("Please upload an image first.")
             image = None
         else:
-            image = Image.open(history[0][1])
+            image = Image.open(history[0][0][0])
             for prompt, answer in history:
                 if answer is None:
                     conversation.extend([{"role": "user", "content": prompt},{"role": "assistant", "content": ""}])