Update app.py

app.py

@@ -560,7 +560,7 @@ if __name__ == '__main__':
     loop = asyncio.new_event_loop()
     asyncio.set_event_loop(loop)
     rp = loop.run_until_complete(downdb())
-    loop.close()
+   # loop.close()
     with app.app_context():
         db.create_all()
     app.run(debug=True, use_reloader=False, host="0.0.0.0", port=7860)