1. Check the network connection. The failure to place an order may be due to unstable network or poor signal. It is suggested to try again in a better network environment.
2. Check the commodity inventory. The failure to place an order may be due to the goods being sold out or insufficient stock. It is recommended to check the inventory status of the goods and try again.
3. Empty the shopping cart cache. The failure to place an order may be due to a problem with the shopping cart cache. It is recommended to clear the shopping cart cache and try again.