Why do I get an error message when I try to download apps in Android 3.1?

IHaveProblems2

New member
Jul 6, 2015
2
0
0
Visit site
Android 3.1 problems

So i recently totally reseted my Samsung Galaxy Tab 10.1 abd i wanna download apps but when i do it gives me an error (Error while retrieving information from server. [RPC:S-7:AEC-72EH2-OLGX-PRQQK]) so u really want help because otherwise this tablet is useless. So tell me if you know a solution or have this problem to (i already cleared cache and clear data and force stop). An other question does somone still use Android 3.1?