google play store

I just got my son this tablet new for his birthday yesterday, I got on google play to download him games, it let me download a couple then after that it kept saying unable to download error 963 & it happen with every game I tried to install, so I called support for Google she walked me though...

After my Google play store uninstalled its self I looked to see if it was disabled,but it was gone and I downloaded a apk of it and not even the apk works it says not responding,so I checked other places and it said install the apk and then reboot it I tried and that didn't work I also tried...