Second, it may be a network problem, slow network speed or busy system.

Third, some files may be lost.

Fourth, possible personal input methods.

5. Possible server problems.

Solution:

1, restart first, and then log in to modify it to see if it can be modified.

2. You can see if other applications can't load or are slow. If it is a network problem, you can load the settings with another mobile data.

3. When inputting characters, avoid inputting special characters and sensitive characters, input the correct format, and try not to input space symbols or something.

4. Don't operate frequently. If it is too frequent, the system will limit whether it can be operated for a period of time.

5. If it is a low version, it is recommended to update the latest version.