Update app.py

app.py

@@ -49,7 +49,7 @@ async def downdb():
 
 loop = asyncio.new_event_loop()
 asyncio.set_event_loop(loop)
-db.session.remove()
+
 rp = loop.run_until_complete(downdb())
 loop.close()  # Close the loop when done
 print('done')