Incompatible devices: the device I used does not meet the minimum system requirements of Wanzhengtong app, and the devices are incompatible, which makes it impossible to download Wanzhengtong app on this device. You can check the demand in the App Store or official website.

Network problem: the network connection is unstable, and the network terminal causes an error in downloading Anhui Zheng Tong app. You can try to download in other network environments, or use a data network to download.