Update app.py

app.py

@@ -69,8 +69,9 @@ with gr.Blocks() as chatHistory:
     clear_btn.click(fn=clear, inputs=None, outputs=None, queue=False)
 
     gr.Markdown("Click the Display button below to show all the chat history.")
+    show_out = gr.Textbox()
     show_btn = gr.Button("Display")
-    show_btn.click(fn=show, inputs=None, outputs="text", queue=False)
+    show_btn.click(fn=show, inputs=None, outputs=show_out, queue=False)