update app.py

app.py

@@ -81,7 +81,7 @@ with gr.Blocks() as demo:
 
     clear_form.click(fn=clear, inputs=None, outputs=[image[0], slider[0], outputs], show_progress=False)
     submit.click(fn=seal_detection, inputs=[image[0], slider[0]], outputs=outputs)
-    flag.click(lambda *args: callback.flag([image, slider, outputs]), inputs=[image, slider, outputs], outputs=None, preprocess=False)
+    flag.click(lambda *args: callback.flag([image, slider, outputs]), inputs=[image[0], slider[0], outputs], outputs=None, preprocess=False)
 
 if __name__ == "__main__":
     demo.queue(api_open=False, max_size=10)