1 and vivox7 can't be downloaded because the network is not good. Check the network connection, check the network settings after installing the network cable, and download Renren again after confirmation.

2.vivox7 mobile phone can't download everyone's mobile phone, because the mobile phone has insufficient memory or a low version, so it can't be downloaded. Open the settings panel of vivox7 mobile phone, check the memory and version, clean up the upgraded memory, and download everyone's mobile phone again after confirmation.