fix typo

app.py

@@ -322,6 +322,6 @@ with image_blocks as demo:
     fetch_button.click(fn=fetch_products, inputs=prompt, outputs=[image_gallery, price_display, url_display])
     image_gallery.select(select_image, [image_gallery, url_display], [garm_img, buy_link])
     try_button.click(fn=start_tryon, inputs=[imgs, garm_img, prompt, is_checked,is_checked_crop, denoise_steps, seed], outputs=[image_out,masked_img], api_name='tryon')
-    buy_button.click(fn=open_link, input=buy_link, outputs= output)
+    buy_button.click(fn=open_link, inputs=buy_link, outputs= output)
             
 image_blocks.launch()