Update app.py

app.py

@@ -90,6 +90,7 @@ with gr.Blocks(
     ).then(
         fn=lambda: gr.update(interactive=True, value="Generate"),
         outputs=t2i_gen_bttn
+    )
 
 if __name__ == "__main__":
     demo.queue(max_size=20).launch(show_error=True)