1, log in again.
2. There is a problem with the platform APP loading. Solution: After uninstalling the original APP, download and install a new platform APP again.
3. The platform login password is wrong. At this point, you need to re-enter the correct login password. If you don't remember, you need to reset your password.
4. It may be a network problem, or more people can't log in. Solution: You can refresh several times before logging in, try again after several people log in, or check the network connection.