1. It may be because the version of the mobile phone is too low to match the version of the education platform, and it needs a mobile phone with Android system to run.

2. "Stop running" caused by network reasons such as poor signal, or "stop running" caused by too many mobile phone programs and insufficient running memory, it is suggested to uninstall some applications, or clean up the data and try again, or uninstall and try again.

In some areas, you can log in after half an hour to activate the program. The reason is that too many people log in and the system is busy, which leads to the "stop running" of the display platform and the need to stagger the landing peak.

4. If you show that the registration code has been registered before registration, it is because your (child's) registration code was wrongly registered by others or stolen by illegal personnel. You can contact the class teacher to reset the registration code, and then you can re-register your child.