Update app.py

app.py

@@ -42,7 +42,7 @@ def generate_answer(question, chat_history):
     #return tokenizer.decode(outputs[0], skip_special_tokens=True)
 
     answer = tokenizer.decode(outputs[0], skip_special_tokens=True).strip()
-    chat_history.append((question, answer))
+    chat_history.append([question, answer])
     return "", chat_history
 
 # === Gradio UI ===
@@ -76,7 +76,8 @@ with gr.Blocks(theme=gr.themes.Base()) as interface:
         outputs=[question_box, chatbot],
     )
 
-    clear_btn.click(lambda: [], inputs=[], outputs=[chatbot, state])
+    clear_btn.click(lambda: ([], []), inputs=[], outputs=[chatbot, state])
+
 
 # === Launch the app ===
 interface.launch(share=True)