The version of the OS on the tablet I bought at AliExpress was called "KUNG" Obviously this version of Android has been altered by it's sellers or manufactures. Something in this OS makes some apps by Google notably G+, not able to install.
This is a huge problem for keeping the tablet safe from malware and infections and viruses as well as making it useless as this is one of the apps I use most.
I disputed 50% of this purchase and made a video showing the problem to AliExpress and they promptly turned it down.
Stay away from AliExpress and its sellers.
I show the problems in this video.
https://youtu.be/92WPP4hCDCQ