Update app.py

app.py

@@ -379,5 +379,5 @@ with gr.Blocks() as app:
     #images.change(update_im,None,link_list,trigger_mode="multiple",js=link_js)
     search_btn.click(search_fn,[search_box,num_return],output)
     btn.click(first,None,output).then(test_single,input,output).then(details_fn,input,[details,images,title,description])
-    bld_bt.click(build_space,[prepared_html,filename_box],links_html)
+    bld_btn.click(build_space,[prepared_html,filename_box],links_html)
 app.launch()